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	<title>Daily Bulletin &#187; Winchester Short Magnum</title>
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		<title>Sunday GunDay: F-Class Nationals &#8212; F-Open Magnum Options</title>
		<link>https://bulletin.accurateshooter.com/2025/07/sunday-gunday-f-class-nationals-f-open-magnum-options/</link>
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		<pubDate>Sun, 27 Jul 2025 14:10:48 +0000</pubDate>
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		<description><![CDATA[Today&#8217;s Sunday GunDay article features modern magnum cartridge types favored by F-Open competitors. These cartridges will soon be in the hands of top F-Open shooters. The 2025 F-Class National Championships commence next week at the Winnequah Gun Club in Lodi, Wisconsin. The Mid-Range Championships run August 2-5, 2025, while the Long Range F-Class Championships start [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/pix/fnat25aug1.jpg" alt="winnequah Gun Club f-class national championships f-open f-tr f-t/r"></p>
<p>Today&#8217;s Sunday GunDay article features modern magnum cartridge types favored by F-Open competitors. These cartridges will soon be in the hands of top F-Open shooters. The <a href="https://accurateshooter.net/pix/2025fclassnatlprogram.pdf" target="_blank">2025 F-Class National Championships</a> commence next week at the Winnequah Gun Club in Lodi, Wisconsin. The Mid-Range Championships run August 2-5, 2025, while the Long Range F-Class Championships start on the 6th and run through August 9, 2025. At the Nationals top F-Open and F-TR shooters are aiming their rifles at 600-yard targets. <a href="https://accurateshooter.net/pix/2025fclassnatlprogram.pdf" target="_blank">VIEW 2025 F-Class Nationals Match Program HERE</a>.</p>
<h2>2025 NRA F-CLASS NATIONAL CHAMPIONSHIPS</h2>
<p><big><strong>NRA F-CLASS MID-RANGE NATIONAL CHAMPIONSHIP AUGUST 2-5, 2025<br />
NRA F-CLASS LONG RANGE NATIONAL CHAMPIONSHIP AUGUST 6-9, 2025</strong></big></p>
<p><img width="600" src="http://accurateshooter.net/Blog/winrangex550.jpg" alt="2024 F-Class National Championship winnequah club"><br />
<i>Event hosted by Winnequah Gun Club and sponsored by Brux Barrels, Criterion Barrels, Krieger Barrels, and Silver Mountain Target.</i></p>
<p><img class="alignright" hspace="6" src="https://accurateshooter.net/pix/fnat24aug3.jpg" alt="winnequah Gun Club f-class national championships f-open f-tr f-t/r">There will be two divisions at The F-Class National Championships: F-Open and F-TR. In F-Open the rifles can shoot any cartridge type (up to .35 caliber) and have a 22-lb (10kg) weight limit. A front rest is allowed, and most shooters favor a rest with a joystick control.</p>
<p>In F-TR, two cartridge types are allowed: .223 Remington (5.56&#215;45) or .308 Winchester (7.62&#215;51 NATO), with no restrictions on bullet weight. F-TR rifles are fired off a bipod attached to the rifle&#8217;s fore-end. The F-TR weight limit is 8.25 kilograms, or about 18 pounds. This includes the weight of the rifle, scope, and bipod. A sandbag can be used under the rear of the stock. Because of the lower weight limit, which includes the bipod, F-TR stocks tend to be much slimmer and lighter than F-Open stocks which have wide fore-arms to work with the front rests.</p>
<h2>F-Open Cartridge Options &#8212; Modern Magnum Options</h2>
<p>For Today&#8217;s Sunday Gunday Story we feature an article about F-Open chamberings by respected rifle builder and past F-Open National Champion Emil Kovan. In this article, Emil reviews some of the new magnum cartridge options that are being employed by F-Open competitors. Many shooters are still using the .284 Winchester (or variants), but an increasing number are shooting 7mm and .30-caliber cartridges based on magnum cartridge types. The 7mm is probably still the favored caliber for F-Open because 7mm bullets offer great ballistics with less recoil than heavier .30-caliber projectiles.</p>
<p><img src="https://accurateshooter.net/pix/fmags23x1.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<h2>Cartridges for F-Class Part II &#8212; Rise of the Magnums</h2>
<p><em>By Emil Kovan</em><br />
<big><strong>Kovan Match Rifles LLC</strong>, <a href="http://matchrifles.com" target="_blank">www.matchrifles.com</a> | <b><a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">READ Part I in this Series &#187;</a></b></big></p>
<p>A few seasons back, I wrote an article on cartridge choices for F-Class shooters. <a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">CLICK HERE to READ ARTICLE</a>. Since the first article I wrote, F-Class has continued to grow, and push the limits of precision and accuracy. While the .284 Win and its variants are still the most common F-Open cartridges, more and more top F-Open shooters are using magnum cartridge types to win competitions and set new records. In this article, I will list some of the advantages and disadvantages of the most commonly used magnums, and will cover the strengths and weaknesses of each one of them.</p>
<p>Performance factors we will consider for magnum F-Open cartridges include: </p>
<p><em>1. Equal or better accuracy than standard chambers<br />
2. Better ballistic performance<br />
3. Enhanced case life<br />
4. Barrel life</em></p>
<h2>Accuracy Potential of Magnum Cartridges for F-0pen Competition</h2>
<p>John Meyrs has won four National Mid-Range Championships using the .300 WSM. Tim Vought used the same cartridge to win two Mid-Range Nationals and used a 7-6.5 PRC to win the long range Nationals. Standard .437&#8243; case head (.308 Win head size) cartridges still have more Nationals wins overall, but the magnums are quickly catching up, and my prediction is that magnums will dominate soon.</p>
<p>The accuracy and precision potential of magnums used in F-Class (.300 WSM, 7-270 WSM, 7mm RSAUM or &#8220;7 SAUM&#8221;, 7-6.5 PRC) is better than non-magnum cartridges because their shapes are closer to the ideal &#8220;fat/short&#8221; body associated with wider nodes and extreme precision. For example a .300 WSM is proportionally much closer to the 6 PPC, 6 Dasher, and 6 BRA than is the .284 Winchester.</p>
<p><img src="https://accurateshooter.net/pix/bergswn22x8.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM SAUM 7mm wildcat"><br />
<i>Stunning F-Open rifle with SEB Mini front rest with Blake Machine accessories.</i></p>
<p>The first thing that comes to mind when magnums are discussed is <strong>power and speed</strong>. In my humble opinion most shooters are missing out on accuracy because they push their magnums right past the most stable and accurate nodes. Recently I met my good friend from the Army Marksmanship Unit, SFC Brandon Green, at a shooting competition. We discussed the latest and greatest in long-range shooting. I knew that the USAMU had switched from 6.5-284 Norma to 7mm RSAUM several years back, but didn’t know what load they are currently using. Brandon told me that the load featured Berger 180gr hybrids in Nosler cases at 2820 fps. We all know that the 7 SAUM is capable of much higher speeds, &#8220;but at around 2820 fps the load/rifle combo will hammer the X-Ring anywhere under any conditions&#8221; SFC Green said.</p>
<p><img src="http://accurateshooter.net/pix/swnsat1803.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"><br />
<i>F-Open rifles on the firing line at the Ben Avery Shooting Facility in Phoenix, Arizona.</i></p>
<p>Most shooters jump right into magnum territory velocities when testing, missing out on better precision at standard chamber speeds. For example, my 30 KMR can easily reach 2880 fps with 230gr Hybrids, and it actually shoots pretty good. But the same rifle at around 2770 fps will absolutely hammer the X-Ring in any condition anywhere. When it’s all said and done, F-Class is a long-range shooting competition at a known distance which requires extreme precision and accuracy. It is not a speed race.</p>
<p><strong>IMPORTANT &#8212; Case-Head Dimensions Do Make a Difference</strong><br />
<img src="https://accurateshooter.net/pix/fmags23x4.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<p>Magnums, when shot within reasonable velocities, on average will give <strong>better case life</strong> due to the bigger case + lower pressure and “more meat” in the case-head area. For example a 7 SAUM case will outlast a .284 Win case when both are loaded to around 2900 fps.</p>
<h2>Disadvantages of Magnum F-Open Cartridges</h2>
<p>Perhaps the biggest disadvantage linked to magnums is recoil. Some people complain about developing the “gun shy” syndrome after shooting a magnum for a while. <strong>Muzzle blast and recoil are significantly more pronounced in magnums</strong>, but that can be easily managed with a properly-built rifle equipped with appropriate recoil mitigation hardware such as RAD and the various butt plates.</p>
<p><img src="http://accurateshooter.net/Blog/speedybret01.jpg" alt="F-Open f-class recoil reduction buttpad"><br />
<i>F-Open rifle equipped with recoil reduction buttpad system.</i></p>
<p><strong>Barrel Life &#8212; &#8220;Barrels are Expendable Components&#8221;</strong><br />
It is true that certain magnums can torch a barrel in just a few hundred rounds. But the same is true when improving a 6BR to 6 Dasher for example &#8212; barrel life might be reduced significantly. More powder = more heat = diminished accuracy after a certain round count. In my experience, a F-Open magnum’s barrel life is very close to high-performance standard cartridges such as the .284 Shehane or .284 KMR. I “retire” my barrels around 1200 rounds regardless of the cartridge being a magnum or not. After that many rounds most barrels will still shoot OK but will copper up, and you will start seeing those unexplained vertical 9s. The bottom line is this, barrels are expendable components very much like brass. You can’t get the performance of .300 WSM and the barrel life of the .308 Win at the same time. If you want to race in NASCAR, fuel mileage should not be the top priority!</p>
<h2>Top Magnum Cartridge Types Used in F-Class Open Division</h2>
<p><big><b>.300 Winchester Short Magnum</b></big><br />
The .300 WSM (Winchester Short Magnum) tops the popularity chart in F-Class Open division. It has been used to win numerous National championships and has set many National records. The .300 WSM&#8217;s short/fat case shape, with minimal body taper and 35-degree shoulder, contribute greatly to its outstanding performance at long range. Components are readily available as well. Best brass remains to be Norma, although ADG is just as good and some would even say better, but it is more expensive and harder to get at this time.</p>
<p><center><img src="https://accurateshooter.net/pix/hunt300wsm04.png" alt=".300 WSM winchester short magnum  7mm .284 Win"><br />
<i>The .300 WSM has been described as a “super-sized Dasher”.</i></center></p>
<p>For the .30-cal magnums, in my opinion, the best bullets by far are made by Berger. If your rifle does not shoot 215gr, 230gr hybrids, or 210gr VLDs well, you likely have a rifle problem, NOT a bullet issue. My “go to” bullet is the Berger 230gr Hybrid. The 215-grainer is a close second, followed by Berger&#8217;s accurate but ballistically inferior 210gr VLD, which I use in calm and steady conditions.</p>
<p>Top powders for the .300 WSM are Hodgdon H4831SC and H4350. I know there are many more powders suitable for the .300 WSM cartridge, but none I have used can match Hodgdon&#8217;s consistency when shot in different geographical locations and weather conditions.</p>
<p><big><b>7mm Remington Short Action Ultra Magnum</b></big><br />
The 7mm RSAUM (aka 7 SAUM) used to be the darling of F-Open. Its case capacity and shape are about perfect for launching 180gr pills with great ballistics and precision. Its popularity faded a little, due to the lack of good brass, and the rise of the improved versions of the .284 Win which can almost match the RSAUM performance. Norma still makes 7 RSAUM brass which is pretty good but little on the soft side and hard to find. ADG is arguably producing the best RSAUM brass right now. It is very uniform, reasonably priced, and seems to hold up very well even when pushed hard. The best bullets are again made by Berger, and those are the 180gr hybrid, 184gr hybrid, and 180gr VLD. Best powders are H4831sc, H4350, and Alliant Reloder 16 and Reloder 23.</p>
<p><big><strong>7-270 WSM, 7-300 WSM, and 7 WSM</strong></big><br />
The first two are pretty much identical, the only difference being that the 7-270 WSM is necked up .270 WSM while the 7-300 WSM is a .300 WSM necked down to 7mm. I personally prefer the first one since necking-up is easier than necking-down (with fewer doughnut issues).</p>
<p>The WSM case-based 7mms will give you great velocity flexibility as well as superb precision when tuned well. In the 2013 world championship in Raton NM, I was scoring for a gentleman from Canada who was shooting 7-270 WSM. The wind was blowing pretty hard that day. On one of his shots, just before he pulled the trigger the wind gusted. I remember thinking that’s going to be an 8 for sure. The target came up a line 10! I asked him after the match what he was shooting, and he replied 180s at 3100fps. Although capable of such speeds, I think that potentially better and more consistent accuracy can be achieved at much slower speeds. The best powders and bullets are again Hodgdon and Berger respectively. Best cases are made by Norma and ADG, with Winchester being a third option.</p>
<p><img src="https://accurateshooter.net/pix/flag28402.jpg" alt="f-class magnum emil kovan wsm rsaum saum cartridge"></p>
<p><big><b>7-6.5 PRC &#8212; Popular Wildcat</b></big><br />
Last but not least on our chart is the 7-6.5 PRC. This particular cartridge is actually a wildcat. It is a <strong>6.5 PRC necked up to 7mm</strong>. It is pretty much identical to the 7 RSAUM with the only differences being a <strong>shorter neck</strong> and .01&#8243;-narrower body. Currently the 7-6.5 PRC is the most requested cartridge that I offer when building new rifles. It seems to fill the gap between the .284 Win and the larger magnums very nicely. It is capable of reaching 3000fps but most shooters are getting their best results around 2920-2950 fps. The biggest advantage of this wildcat is brass. Lapua makes super high-quality, readily-available 6.5 PRC brass. Best powders are H4831sc, H4350, Reloder 16, and Vihtavuori VV 555. The best bullet in my opinion is the 180gr Berger. I am yet to hear about a better-performing bullet in this chamber.</p>
<blockquote><p><big><strong>Conclusion</strong></big><br />
<img class="alignright" hspace="6" width="220" src="http://accurateshooter.net/pix/kovancart1605.jpg" alt="Emil Kovan F-Class competition bio photo">In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven&#8217;t already) buy a magnum action and get a magnum build for sure!</p>
<p>Emil Kovan<br />
Kovan Match Rifles LLC<br />
<a href="https://matchrifles.com" target="_blank">www.matchrifles.com</a></p>
<p><strong>Emil Kovan Competition History:</strong></p>
<p>&#8211; 2014 F-Class Open National Champion<br />
&#8211; 2015 F-Class Open National Championship, Silver Medal<br />
&#8211; F-Class Open National Championship Teams, 2015, 2014, 2013, Shooting Team Member<br />
&#8211; Over 15 wins in Regional and State Championships in Palma, F-TR, F-Open<br />
&#8211; 2013 U.S. National Team Member<br />
&#8211; 2023 F-Open Gold Medal Team USA Member, 2023 World Championship in South Africa</p></blockquote>
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		<title>Sunday GunDay: F-Class Nationals &#8212; New Magnums for F-Open</title>
		<link>https://bulletin.accurateshooter.com/2024/08/sunday-gunday-f-class-nationals-new-magnums-for-f-open/</link>
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		<pubDate>Sun, 11 Aug 2024 15:08:04 +0000</pubDate>
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		<description><![CDATA[The USA F-Class National Championships are underway right now in Lodi, Wisconsin. The Mid-Range Championships run August 10-13, 2024, while the Long Range F-Class Championships start on the 14th and run through August 17, 2024. With the Mid-Range event underway today, as you read this, top F-Open and F-TR shooters are aiming their rifles at [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/pix/fnat24aug1.jpg" alt="winnequah Gun Club f-class national championships f-open f-tr f-t/r"></p>
<p>The <a href="https://winnequahgunclub.org/wp-content/uploads/2023/12/2024-F-CLASS-NATL-CH-PROGRAM.pdf" target="_blank">USA F-Class National Championships</a> are underway right now in Lodi, Wisconsin. The Mid-Range Championships run August 10-13, 2024, while the Long Range F-Class Championships start on the 14th and run through August 17, 2024. With the Mid-Range event underway today, as you read this, top F-Open and F-TR shooters are aiming their rifles at 600-yard targets. <a href="https://winnequahgunclub.org/wp-content/uploads/2023/12/2024-F-CLASS-NATL-CH-PROGRAM.pdf" target="_blank">VIEW Nationals Match Program HERE</a>.</p>
<h2>2024 NRA F-CLASS NATIONAL CHAMPIONSHIPS</h2>
<p><big><strong>NRA F-CLASS MID-RANGE NATIONAL CHAMPIONSHIP AUGUST 10-13, 2024<br />
NRA F-CLASS LONG RANGE NATIONAL CHAMPIONSHIP AUGUST 14-17, 2024</strong></big></p>
<p><img width="600" src="http://accurateshooter.net/Blog/winrangex550.jpg" alt="2024 F-Class National Championship winnequah club"><br />
<i>Event hosted by Winnequah Gun Club and sponsored by Brux Barrels, Criterion Barrels, Krieger Barrels, and Silver Mountain Target.</i></p>
<p><img class="alignright" hspace="6" src="https://accurateshooter.net/pix/fnat24aug3.jpg" alt="winnequah Gun Club f-class national championships f-open f-tr f-t/r">There will be two divisions at The F-Class National Championships: F-Open and F-TR. In F-Open the rifles can shoot any cartridge type (up to .35 caliber) and have a 22-lb (10kg) weight limit. A front rest is allowed, and most shooters favor a rest with a joystick control.</p>
<p>In F-TR, two cartridge types are allowed: .223 Remington (5.56&#215;45) or .308 Winchester (7.62&#215;51 NATO), with no restrictions on bullet weight. F-TR rifles are fired off a bipod attached to the rifle&#8217;s fore-end. The F-TR weight limit is 8.25 kilograms, or about 18 pounds. This includes the weight of the rifle, scope, and bipod. A sandbag can be used under the rear of the stock. Because of the lower weight limit, which includes the bipod, F-TR stocks tend to be much slimmer and lighter than F-Open stocks which have wide fore-arms to work with the front rests.</p>
<h2>F-Open Cartridge Options &#8212; Modern Magnum Options</h2>
<p>For Today&#8217;s Sunday Gunday Story we feature an article about F-Open chamberings by respected rifle builder and past F-Open National Champion Emil Kovan. In this article, Emil reviews some of the new magnum cartridge options that are being employed by F-Open competitors. Many shooters are still using the .284 Winchester (or variants), but an increasing number are shooting 7mm and .30-caliber cartridges based on magnum cartridge types. The 7mm is probably still the favored caliber for F-Open because 7mm bullets offer great ballistics with less recoil than heavier .30-caliber projectiles.</p>
<p><img src="https://accurateshooter.net/pix/fmags23x1.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<h2>Cartridges for F-Class Part II &#8212; Rise of the Magnums</h2>
<p><em>By Emil Kovan</em><br />
<big><strong>Kovan Match Rifles LLC</strong>, <a href="http://matchrifles.com" target="_blank">www.matchrifles.com</a> | <b><a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">READ Part I in this Series &#187;</a></b></big></p>
<p>A few seasons back, I wrote an article on cartridge choices for F-Class shooters. <a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">CLICK HERE to READ ARTICLE</a>. Since the first article I wrote, F-Class has continued to grow, and push the limits of precision and accuracy. While the .284 Win and its variants are still the most common F-Open cartridges, more and more top F-Open shooters are using magnum cartridge types to win competitions and set new records. In this article, I will list some of the advantages and disadvantages of the most commonly used magnums, and will cover the strengths and weaknesses of each one of them.</p>
<p>Performance factors we will consider for magnum F-Open cartridges include: </p>
<p><em>1. Equal or better accuracy than standard chambers<br />
2. Better ballistic performance<br />
3. Enhanced case life<br />
4. Barrel life</em></p>
<h2>Accuracy Potential of Magnum Cartridges for F-0pen Competition</h2>
<p>John Meyrs has won four National Mid-Range Championships using the .300 WSM. Tim Vought used the same cartridge to win two Mid-Range Nationals and used a 7-6.5 PRC to win the long range Nationals. Standard .437&#8243; case head (.308 Win head size) cartridges still have more Nationals wins overall, but the magnums are quickly catching up, and my prediction is that magnums will dominate soon.</p>
<p>The accuracy and precision potential of magnums used in F-Class (.300 WSM, 7-270 WSM, 7mm RSAUM or &#8220;7 SAUM&#8221;, 7-6.5 PRC) is better than non-magnum cartridges because their shapes are closer to the ideal &#8220;fat/short&#8221; body associated with wider nodes and extreme precision. For example a .300 WSM is proportionally much closer to the 6 PPC, 6 Dasher, and 6 BRA than is the .284 Winchester.</p>
<p><img src="https://accurateshooter.net/pix/bergswn22x8.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM SAUM 7mm wildcat"><br />
<i>Stunning F-Open rifle with SEB Mini front rest with Blake Machine accessories.</i></p>
<p>The first thing that comes to mind when magnums are discussed is <strong>power and speed</strong>. In my humble opinion most shooters are missing out on accuracy because they push their magnums right past the most stable and accurate nodes. Recently I met my good friend from the Army Marksmanship Unit, SFC Brandon Green, at a shooting competition. We discussed the latest and greatest in long-range shooting. I knew that the USAMU had switched from 6.5-284 Norma to 7mm RSAUM several years back, but didn’t know what load they are currently using. Brandon told me that the load featured Berger 180gr hybrids in Nosler cases at 2820 fps. We all know that the 7 SAUM is capable of much higher speeds, &#8220;but at around 2820 fps the load/rifle combo will hammer the X-Ring anywhere under any conditions&#8221; SFC Green said.</p>
<p><img src="http://accurateshooter.net/pix/swnsat1803.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"><br />
<i>F-Open rifles on the firing line at the Ben Avery Shooting Facility in Phoenix, Arizona.</i></p>
<p>Most shooters jump right into magnum territory velocities when testing, missing out on better precision at standard chamber speeds. For example, my 30 KMR can easily reach 2880 fps with 230gr Hybrids, and it actually shoots pretty good. But the same rifle at around 2770 fps will absolutely hammer the X-Ring in any condition anywhere. When it’s all said and done, F-Class is a long-range shooting competition at a known distance which requires extreme precision and accuracy. It is not a speed race.</p>
<p><strong>IMPORTANT &#8212; Case-Head Dimensions Do Make a Difference</strong><br />
<img src="https://accurateshooter.net/pix/fmags23x4.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<p>Magnums, when shot within reasonable velocities, on average will give <strong>better case life</strong> due to the bigger case + lower pressure and “more meat” in the case-head area. For example a 7 SAUM case will outlast a .284 Win case when both are loaded to around 2900 fps.</p>
<h2>Disadvantages of Magnum F-Open Cartridges</h2>
<p>Perhaps the biggest disadvantage linked to magnums is recoil. Some people complain about developing the “gun shy” syndrome after shooting a magnum for a while. <strong>Muzzle blast and recoil are significantly more pronounced in magnums</strong>, but that can be easily managed with a properly-built rifle equipped with appropriate recoil mitigation hardware such as RAD and the various butt plates.</p>
<p><img src="http://accurateshooter.net/Blog/speedybret01.jpg" alt="F-Open f-class recoil reduction buttpad"><br />
<i>F-Open rifle equipped with recoil reduction buttpad system.</i></p>
<p><strong>Barrel Life &#8212; &#8220;Barrels are Expendable Components&#8221;</strong><br />
It is true that certain magnums can torch a barrel in just a few hundred rounds. But the same is true when improving a 6BR to 6 Dasher for example &#8212; barrel life might be reduced significantly. More powder = more heat = diminished accuracy after a certain round count. In my experience, a F-Open magnum’s barrel life is very close to high-performance standard cartridges such as the .284 Shehane or .284 KMR. I “retire” my barrels around 1200 rounds regardless of the cartridge being a magnum or not. After that many rounds most barrels will still shoot OK but will copper up, and you will start seeing those unexplained vertical 9s. The bottom line is this, barrels are expendable components very much like brass. You can’t get the performance of .300 WSM and the barrel life of the .308 Win at the same time. If you want to race in NASCAR, fuel mileage should not be the top priority!</p>
<h2>Top Magnum Cartridge Types Used in F-Class Open Division</h2>
<p><big><b>.300 Winchester Short Magnum</b></big><br />
The .300 WSM (Winchester Short Magnum) tops the popularity chart in F-Class Open division. It has been used to win numerous National championships and has set many National records. The .300 WSM&#8217;s short/fat case shape, with minimal body taper and 35-degree shoulder, contribute greatly to its outstanding performance at long range. Components are readily available as well. Best brass remains to be Norma, although ADG is just as good and some would even say better, but it is more expensive and harder to get at this time.</p>
<p><center><img src="https://accurateshooter.net/pix/hunt300wsm04.png" alt=".300 WSM winchester short magnum  7mm .284 Win"><br />
<i>The .300 WSM has been described as a “super-sized Dasher”.</i></center></p>
<p>For the .30-cal magnums, in my opinion, the best bullets by far are made by Berger. If your rifle does not shoot 215gr, 230gr hybrids, or 210gr VLDs well, you likely have a rifle problem, NOT a bullet issue. My “go to” bullet is the Berger 230gr Hybrid. The 215-grainer is a close second, followed by Berger&#8217;s accurate but ballistically inferior 210gr VLD, which I use in calm and steady conditions.</p>
<p>Top powders for the .300 WSM are Hodgdon H4831SC and H4350. I know there are many more powders suitable for the .300 WSM cartridge, but none I have used can match Hodgdon&#8217;s consistency when shot in different geographical locations and weather conditions.</p>
<p><big><b>7mm Remington Short Action Ultra Magnum</b></big><br />
The 7mm RSAUM (aka 7 SAUM) used to be the darling of F-Open. Its case capacity and shape are about perfect for launching 180gr pills with great ballistics and precision. Its popularity faded a little, due to the lack of good brass, and the rise of the improved versions of the .284 Win which can almost match the RSAUM performance. Norma still makes 7 RSAUM brass which is pretty good but little on the soft side and hard to find. ADG is arguably producing the best RSAUM brass right now. It is very uniform, reasonably priced, and seems to hold up very well even when pushed hard. The best bullets are again made by Berger, and those are the 180gr hybrid, 184gr hybrid, and 180gr VLD. Best powders are H4831sc, H4350, and Alliant Reloder 16 and Reloder 23.</p>
<p><big><strong>7-270 WSM, 7-300 WSM, and 7 WSM</strong></big><br />
The first two are pretty much identical, the only difference being that the 7-270 WSM is necked up .270 WSM while the 7-300 WSM is a .300 WSM necked down to 7mm. I personally prefer the first one since necking-up is easier than necking-down (with fewer doughnut issues).</p>
<p>The WSM case-based 7mms will give you great velocity flexibility as well as superb precision when tuned well. In the 2013 world championship in Raton NM, I was scoring for a gentleman from Canada who was shooting 7-270 WSM. The wind was blowing pretty hard that day. On one of his shots, just before he pulled the trigger the wind gusted. I remember thinking that’s going to be an 8 for sure. The target came up a line 10! I asked him after the match what he was shooting, and he replied 180s at 3100fps. Although capable of such speeds, I think that potentially better and more consistent accuracy can be achieved at much slower speeds. The best powders and bullets are again Hodgdon and Berger respectively. Best cases are made by Norma and ADG, with Winchester being a third option.</p>
<p><img src="https://accurateshooter.net/pix/flag28402.jpg" alt="f-class magnum emil kovan wsm rsaum saum cartridge"></p>
<p><big><b>7-6.5 PRC &#8212; Popular Wildcat</b></big><br />
Last but not least on our chart is the 7-6.5 PRC. This particular cartridge is actually a wildcat. It is a <strong>6.5 PRC necked up to 7mm</strong>. It is pretty much identical to the 7 RSAUM with the only differences being a <strong>shorter neck</strong> and .01&#8243;-narrower body. Currently the 7-6.5 PRC is the most requested cartridge that I offer when building new rifles. It seems to fill the gap between the .284 Win and the larger magnums very nicely. It is capable of reaching 3000fps but most shooters are getting their best results around 2920-2950 fps. The biggest advantage of this wildcat is brass. Lapua makes super high-quality, readily-available 6.5 PRC brass. Best powders are H4831sc, H4350, Reloder 16, and Vihtavuori VV 555. The best bullet in my opinion is the 180gr Berger. I am yet to hear about a better-performing bullet in this chamber.</p>
<blockquote><p><big><strong>Conclusion</strong></big><br />
<img class="alignright" hspace="6" width="220" src="http://accurateshooter.net/pix/kovancart1605.jpg" alt="Emil Kovan F-Class competition bio photo">In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven&#8217;t already) buy a magnum action and get a magnum build for sure!</p>
<p>Emil Kovan<br />
Kovan Match Rifles LLC<br />
<a href="https://matchrifles.com" target="_blank">www.matchrifles.com</a></p>
<p><strong>Emil Kovan Competition History:</strong></p>
<p>&#8211; 2014 F-Class Open National Champion<br />
&#8211; 2015 F-Class Open National Championship, Silver Medal<br />
&#8211; F-Class Open National Championship Teams, 2015, 2014, 2013, Shooting Team Member<br />
&#8211; Over 15 wins in Regional and State Championships in Palma, F-TR, F-Open<br />
&#8211; 2013 U.S. National Team Member<br />
&#8211; 2023 F-Open Gold Medal Team USA Member, 2023 World Championship in South Africa</p></blockquote>
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		<title>Lapua Will Offer 6mm GT and .300 WSM Cartridge Brass in 2024</title>
		<link>https://bulletin.accurateshooter.com/2024/01/lapua-will-offer-6mm-gt-and-300-wsm-brass-in-2024/</link>
		<comments>https://bulletin.accurateshooter.com/2024/01/lapua-will-offer-6mm-gt-and-300-wsm-brass-in-2024/#comments</comments>
		<pubDate>Thu, 11 Jan 2024 18:15:35 +0000</pubDate>
		<dc:creator><![CDATA[Editor]]></dc:creator>
				<category><![CDATA[Bullets, Brass, Ammo]]></category>
		<category><![CDATA[New Product]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[300 WSM]]></category>
		<category><![CDATA[300WSM]]></category>
		<category><![CDATA[6GT]]></category>
		<category><![CDATA[6mm GT]]></category>
		<category><![CDATA[Lapua Brass]]></category>
		<category><![CDATA[New Lapua Brass]]></category>
		<category><![CDATA[Winchester Short Magnum]]></category>

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		<description><![CDATA[Big news &#8212; Lapua will be releasing 6mm GT and .300 WSM cartridge brass in 2024! Lapua has announced the addition of two major additions to its brass lineup. In spring, Lapua will start shipping .300 Winchester Short Magnum (WSM) cartridge cases. And, in the fall of 2024, Lapua promises to offer 6mm GT brass [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><a href="https://www.lapua.com/" target="_blank"><img src="https://accurateshooter.net/pix/lapbrass24x1.jpg" alt="lapua capstone brass 2024 6gt 6mmgt 6mm gt 300WSM .300 WSM 300 Winchester short magnum cartridge"></a></p>
<p>Big news &#8212; Lapua will be releasing 6mm GT and .300 WSM cartridge brass in 2024! Lapua has announced the addition of two major additions to its brass lineup. In spring, Lapua will start shipping .300 Winchester Short Magnum (WSM) cartridge cases. And, in the fall of 2024, Lapua promises to offer 6mm GT brass through authorized Lapua retailers.</p>
<h2>Lapua 6mm GT (6GT) Brass</h2>
<p><img src="https://accurateshooter.net/pix/lapbrass24x4.jpg" alt="6mm GT 6GT 6mmgt cartridge lapua brass"></p>
<p>Lapua&#8217;s new 6mm GT brass promises to be a big hit with PRS/NRL shooters and varminters who want a bit more capacity than the 6mmBR case. The 6mm GT (aka 6GT) cartridge was conceived as a “bigger Dasher” for PRS/NRL competition. The 6mm GT&#8217;s creators wanted 6mm Dasher accuracy and moderate recoil delivered via a cartridge with a slightly longer case body for better mag-feeding, longer neck for seating flexibility, and more moderate pressures. So far the 6GT has performed very well in PRS/NRL competition. With the upcoming availability of premium Lapua-brand 6mm GT brass, we may also see a greater adoption of the 6GT in mid-range benchrest competition. We expect varminters may adopt the cartridge also, both in 6mm and necked down to .22 caliber.</p>
<p><img src="https://accurateshooter.net/pix/lapbrass24x2.jpg" alt="lapua capstone brass 2024 6gt 6mmgt 6mm gt 300WSM .300 WSM 300 Winchester short magnum cartridge"></p>
<blockquote><p>Lapua’s Vice President of Sales &#038; Marketing, Jarkko Aro stated, “Competitors shooting PRS, and similar long-range disciplines, have urged us to develop a 6mm GT case with unmatched quality and superior cartridge geometry to those currently offered in the marketplace. We’re confident we’ve exceeded their demands by collaborating with original cartridge developers, George Gardner and Tom Jacobs.”</p></blockquote>
<p><img src="https://accurateshooter.net/pix/mike6gt06.jpg" alt="6mm GT 6GT 6mmgt cartridge lapua brass"></p>
<h2>Lapua .300 Winchester Short Magnum (WSM) Brass</h2>
<p>Available in spring of 2024, Lapua will offer a superior-quality .300 WSM case through authorized retailers. Lapua cartridge cases are known for their superb quality, consistency, and longevity. Lapua brass cases are the #1 component choice of competitive shooters in most accuracy disciplines. Lapua uses only the highest-quality materials and manufacturing processes to satisfy the demands of reloaders who seek the highest levels of precision from their .300 WSM firearm platforms.</p>
<p>This product release is significant news for hunters and F-Open shooters. The .300 WSM has been an effective F-Open cartridge, both in .30-caliber and necked down to 7mm. With the availability of Lapua-brand .300 WSM brass later this spring, we expect that more F-Open shooters will employ a match cartridge based on this brass.</p>
<p>Lapua Sales &#038; Marketing Manager, Erkki Seikkula stated, “.300 WSM reloading enthusiasts who insist on using the best components now have Lapua cartridge cases available for their long-range target rifles and custom hunting guns. From all of us at Lapua, thank you for seeking out our components to fulfill your precision reloading needs.” Order now for delivery in spring 2024 from authorized Lapua retailers.</p>
<p><img src="https://accurateshooter.net/pix/lapbrass24x3.png" alt="lapua capstone brass 2024 6gt 6mmgt 6mm gt 300WSM .300 WSM 300 Winchester short magnum cartridge"></p>
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		<title>Sunday GunDay: .300 WSM Carbon Tech LR Hunting Rifle</title>
		<link>https://bulletin.accurateshooter.com/2023/11/sunday-gunday-300-wsm-carbon-tech-lr-hunting-rifle/</link>
		<comments>https://bulletin.accurateshooter.com/2023/11/sunday-gunday-300-wsm-carbon-tech-lr-hunting-rifle/#comments</comments>
		<pubDate>Sun, 12 Nov 2023 14:38:49 +0000</pubDate>
		<dc:creator><![CDATA[Editor]]></dc:creator>
				<category><![CDATA[Gear Review]]></category>
		<category><![CDATA[Gunsmithing]]></category>
		<category><![CDATA[Hunting/Varminting]]></category>
		<category><![CDATA[300 WSM]]></category>
		<category><![CDATA[Annealing]]></category>
		<category><![CDATA[Carbon Barrel]]></category>
		<category><![CDATA[Hunting Rig]]></category>
		<category><![CDATA[Manners Stocks]]></category>
		<category><![CDATA[Winchester Brass]]></category>
		<category><![CDATA[Winchester Short Magnum]]></category>

		<guid isPermaLink="false">http://bulletin.accurateshooter.com/?p=69567</guid>
		<description><![CDATA[High-Tech Hunter in .300 WSM Since its introduction in 2001, the .300 Winchester Short Magnum (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/GOTW/anders01top.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<h2>High-Tech Hunter in .300 WSM</h2>
<p>Since its introduction in 2001, the <a href="https://en.wikipedia.org/wiki/.300_Winchester_Short_Magnum" target="_blank">.300 Winchester Short Magnum</a> (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson decided to build his &#8220;ultimate long-range hunter&#8221;, he selected the .300 WSM for its accuracy and its ability to drop large game at long distances. Teaming up with Chris Matthews of LongShot Rifles, Greg developed an impressive long-range hunting rig, with high-tech components to reduce weight. The 26&#8243; barrel is a carbon-wrapped composite over a Rock Creek stainless blank. The carbon technology <strong>saved about 3 pounds</strong> over an all-steel barrel of similar length/contour.</p>
<p><img src="https://accurateshooter.net/GOTW/anders02corn.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p>The Manners Composite stock also features carbon fiber construction for stiffness and reduced weight. Greg&#8217;s carbon/carbon rifle tips the scales at just 10.8 pounds, including scope and bipod. A conventional rig could easily weigh 15 pounds or more. Greg&#8217;s carbon hunter has proven accurate as well as innovative. With 175gr Sierra MKs, the gun shoots well under 1/2-MOA out to 600 yards and beyond.</p>
<h2>The Ideal Spot and Stalk Rifle</h2>
<p><em>by Greg Anderson</em><br />
The purpose of this project was to create a hunting rifle that would be inherently accurate at long range and have an acceptable weight for hunting in rough country. I researched the question of overall weight with several gunsmiths. The smiths confirmed that while fat-contour barrels could deliver improved accuracy, there was a price to pay and a lot more weight. With a heavy barrel, the finished rifle would be most likely weigh about 15 pounds. That&#8217;s more than I wanted to haul around in the field. To reduce barrel weight, the suggested &#8220;traditional&#8221; solutions were fluting, which would reduce barrel weight by at least one-half pound, or going with a smaller diameter barrel.</p>
<p><em>The Quest for Reduced Weight without Accuracy Loss</em><br />
Fluting didn&#8217;t promise enough weight savings, and a slim, sporter barrel probably wasn&#8217;t going to deliver the kind of consistent accuracy I wanted (particularly as the barrel heated up). Accordingly, I decided to &#8220;think outside the box&#8221;. My research on lightweight barrel options lead me to Advanced Barrel Systems, (ABS) a company in Lincoln, Nebraska that once produced custom carbon-wrapped barrels. ABS President Mike Degerness could wrap a barrel to virtually any shape and diameter, allowing great stiffness even with a huge reduction in barrel weight. As the &#8220;core&#8221; for his carbon-wrapped barrels, Mike recommends a cut-rifled blank made by any of the quality cut-barrel makers. [NOTE: ABS is not taking orders at this time. You can now get excellent carbon-wrapped barrels from <a href="https://proofresearch.com/" target="_blank">Proof Research</a>].</p>
<p><img src="https://accurateshooter.net/junepix/proofres1602.jpg" alt="Proof reasearch carbon barrel"></p>
<p><big><strong>Significant Weight Saving with Carbon</strong></big><br />
How much weight can you save with a carbon-wrapped barrel? Well a 24-inch, #7 contour ABS carbon-wrapped barrel will weigh about 2.5 pounds compared to about 5.5 pounds for a steel barrel of the same length and contour. So, this means that you can put a fat, stiff competition-contour barrel on your hunting rifle and <strong>save over half the barrel weight</strong> compared to an all-steel barrel. Saving three pounds is a blessing when you&#8217;re carrying the rifle all day long in the field. I placed an order for a 30-caliber Rock Creek barrel blank with an 1:11.25&#8243; twist and a finished length of 26&#8243;. Mike wrapped the barrel and finished it to an M24 contour.</p>
<p><big><strong>Carbon Can Also Improve Barrel Vibration Damping</strong></big><br />
One interesting benefit of carbon barrel-wrapping is that the carbon components have a vibration-dampening effect. According to ABS, the extreme rigidity of the finished composite barrel dampens the vibration nodes of the barrel making it shoot like a plain steel barrel of much greater mass. Carbon fiber has a high modulus of elasticity that has the effect of lowering the amplitude of the vibration of the barrel when fired. This is what makes the ABS barrels perform so well, according to Mike.</p>
<p><img src="https://accurateshooter.net/GOTW/anders03barrel.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p><big><strong>Impressive Accuracy For a Hunting Rifle</strong></big><br />
Looking at the targets below, one may ask, &#8220;Does the rifle always shoot this well?&#8221; The answer, not surprisingly, is: &#8220;it depends on the trigger-puller&#8221;. The rifle is capable of outstanding accuracy. But it took some time and effort for me to develop the skills required to shoot up to the rifle&#8217;s inherent accuracy. I nearly always practice prone from bipod. Initially, I was getting horizontal stringing until I changed my grip and learned to be more consistent from shot to shot. Shooting a heavy-recoiling .30-caliber rifle from the ground is not the same as shooting a .223 Rem from the bench.</p>
<p>
<table border="0" width="600" cellpadding="0" bgcolor="000000"><TR align="middle">
<td><font face="Verdana" size="3" color="ffffff"><b>3-Shot Group at 200 yards | 6-Shot Group at 500 Yards</b></font></td>
</tr>
<tr>
<td><img border="0" src="https://accurateshooter.net/GOTW/anders08targ.jpg"><img border="0" src="https://accurateshooter.net/GOTW/anders09targ.jpg"></td>
</tr>
</table>
<p><img src="https://accurateshooter.net/pix/hunt300wsm04.png" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p><big><strong>Completing the Project Build</strong></big><br />
To smith the rifle, I selected Chris Matthews of LongShot Rifles, LLC because of his expertise with the WSM cartridges and long-range shooting equipment. Because cost was a factor, we decided to use a donor Remington long action that had been used on a Remington 7mm magnum. Chris trued the action and we had Dave Kiff from Pacific Tool &#038; Gauge grind us a bolt to fit the action more perfectly. Chris chambered the Rock barrel and installed a .300 Badger recoil lug.</p>
<p><big><strong>Carbon-Reinforced Hunting Stock from Tom Manners</strong></big><br />
Being a fan of carbon fiber technology, I selected an MCS-T stock from Manners Composite Stocks. These stocks have an extremely high strength-to-weight ratio and the high comb of the MCS-T gave an almost perfect alignment with the scope. The finished rifle was topped off with a Leupold 4.5-14x40mm LR scope equipped with M1 windage and elevation turrets. A Harris bipod completed the package. All up, including scope, steel rings, and bipod, my .300 WSM rifle with 26&#8243; barrel <strong>weighs 10.8 pounds</strong>.</p>
<p><img src="https://accurateshooter.net/GOTW/anders04stock.jpg"  alt="300 WSM Carbon hunting hunter rifle Manners stocks"></p>
<p><big><strong>Load Development for Accuracy</strong></big><br />
I developed a load using 63.0 grains of H4350, 175gr Sierra Match Kings with Federal 210M primers in Winchester-brand brass. This load gives 2960 FPS out of my rifle. The load would shoot sub-MOA from bipod from 100 yards to 600 yards and was adopted as the &#8220;go to&#8221; load. I have also tried the 208gr Hornady A-Max in this gun. The A-Maxs shot well but the Sierras work well for everything (paper punching and hunting) so the 175gr SMK is my bullet of choice.</p>
<p><img src="https://accurateshooter.net/GOTW/anders06bench.jpg" alt="300 WSM Carbon hunting hunter rifle"></p>
<blockquote><p><strong>Brass Prep and Annealing Are Very Important</strong><br />
The Winchester-brand brass is good, but you have to prep it thoroughly if you want good results. My brass prep consisted of turning the necks, de-burring the flash holes (inside and out), and chamfering the case necks. Using a Sinclair neck-turning tool, I turn the necks to .0135&#8243; per side. That provides a complete clean-up of the necks, which run about .015&#8243; neck-wall thickness out of the box.</p>
<p><img class="alignright" hspace="6" src="https://accurateshooter.net/GOTW/anders011anneal.jpg" alt="anneal annealing tempilaq">One thing I&#8217;ve learned to do is anneal the brass every 3-4 firings. I started to do that after I noticed that the force required to seat bullets became inconsistent after just a few loading cycles. I also experienced flyers that were going out of the group for no apparent reason. Annealing the cases every 3-4 firings has eliminated most of the unexplained flyers and annealing has also made bullet seating much, much more consistent. I&#8217;ve also noticed a significant improvement in my groups at 500 and 600 yards now that I anneal regularly. Group sizes at 600 yards can be as much as 2&#8243; smaller with annealed brass than with un-annealed, work-hardened brass.</p></blockquote>
<p><i>Greg Anderson was successful with his .300 WSM on his very first hunt, dropping a nice buck at 364 yards. Chris reports: This was on some private land in Nebraska. As daylight faded&#8230; there were a couple of bucks, but one looked to be the best of the lot. The buck gave me a broadside shot ranged at 364 yards. I settled behind the scope and took one shot. It hit right where I aimed and the buck just folded.&#8221;</i></p>
<p><img width="600" src="https://accurateshooter.net/GOTW/anders05deer.jpg" alt="deer hunting buck 300 WSM"></p>
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		<title>Sunday GunDay: Cartridges for F-Class &#8212; Rise of the Magnums</title>
		<link>https://bulletin.accurateshooter.com/2023/07/sunday-gunday-cartridges-for-f-class-rise-of-the-magnums/</link>
		<comments>https://bulletin.accurateshooter.com/2023/07/sunday-gunday-cartridges-for-f-class-rise-of-the-magnums/#comments</comments>
		<pubDate>Sun, 30 Jul 2023 15:40:56 +0000</pubDate>
		<dc:creator><![CDATA[Editor]]></dc:creator>
				<category><![CDATA[- Articles]]></category>
		<category><![CDATA[Bullets, Brass, Ammo]]></category>
		<category><![CDATA[Competition]]></category>
		<category><![CDATA[Gear Review]]></category>
		<category><![CDATA[300 WSM]]></category>
		<category><![CDATA[6.5 PRC]]></category>
		<category><![CDATA[7 SAUM]]></category>
		<category><![CDATA[7 WSM]]></category>
		<category><![CDATA[7mm Magnum]]></category>
		<category><![CDATA[Emil Kovan]]></category>
		<category><![CDATA[F-Class]]></category>
		<category><![CDATA[F-Open]]></category>
		<category><![CDATA[Sunday Gunday]]></category>
		<category><![CDATA[Winchester Short Magnum]]></category>

		<guid isPermaLink="false">http://bulletin.accurateshooter.com/?p=69236</guid>
		<description><![CDATA[Cartridges for F-Class Part II &#8212; Rise of the Magnums By Emil Kovan Kovan Match Rifles LLC, www.matchrifles.com &#124; READ Part I in this Series &#187; A few seasons back, I wrote an article on cartridge choices for F-Class shooters. CLICK HERE to READ ARTICLE. Since the first article I wrote, F-Class has continued to [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/pix/fmags23x1.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<h2>Cartridges for F-Class Part II &#8212; Rise of the Magnums</h2>
<p><em>By Emil Kovan</em><br />
<big><strong>Kovan Match Rifles LLC</strong>, <a href="http://matchrifles.com" target="_blank">www.matchrifles.com</a> | <b><a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">READ Part I in this Series &#187;</a></b></big></p>
<p>A few seasons back, I wrote an article on cartridge choices for F-Class shooters. <a href="https://bulletin.accurateshooter.com/2019/12/f-class-best-cartridge-options-for-mid-range-and-long-range/" target="_blank">CLICK HERE to READ ARTICLE</a>. Since the first article I wrote, F-Class has continued to grow, and push the limits of precision and accuracy. While the .284 Win and its variants are still the most common F-Open cartridges, more and more top F-Open shooters are using magnum cartridge types to win competitions and set new records. In this article, I will list some of the advantages and disadvantages of the most commonly used magnums, and will cover the strengths and weaknesses of each one of them.</p>
<p>Performance factors we will consider for magnum F-Open cartridges include: </p>
<p><em>1. Equal or better accuracy than standard chambers<br />
2. Better ballistic performance<br />
3. Enhanced case life<br />
4. Barrel life</em></p>
<h2>Accuracy Potential of Magnum Cartridges for F-0pen Competition</h2>
<p>John Meyrs has won four National Mid-Range Championships using the .300 WSM. Tim Vought used the same cartridge to win two Mid-Range Nationals and used a 7-6.5 PRC to win the long range Nationals. Standard .437&#8243; case head (.308 Win head size) cartridges still have more Nationals wins overall, but the magnums are quickly catching up, and my prediction is that magnums will dominate soon.</p>
<p>The accuracy and precision potential of magnums used in F-Class (.300 WSM, 7-270 WSM, 7mm RSAUM or &#8220;7 SAUM&#8221;, 7-6.5 PRC) is better than non-magnum cartridges because their shapes are closer to the ideal &#8220;fat/short&#8221; body associated with wider nodes and extreme precision. For example a .300 WSM is proportionally much closer to the 6 PPC, 6 Dasher, and 6 BRA than is the .284 Winchester.</p>
<p><img src="https://accurateshooter.net/pix/bergswn22x8.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM SAUM 7mm wildcat"><br />
<i>Stunning F-Open rifle with SEB Mini front rest with Blake Machine accessories.</i></p>
<p>The first thing that comes to mind when magnums are discussed is <strong>power and speed</strong>. In my humble opinion most shooters are missing out on accuracy because they push their magnums right past the most stable and accurate nodes. Recently I met my good friend from the Army Marksmanship Unit, SFC Brandon Green, at a shooting competition. We discussed the latest and greatest in long-range shooting. I knew that the USAMU had switched from 6.5-284 Norma to 7mm RSAUM several years back, but didn’t know what load they are currently using. Brandon told me that the load featured Berger 180gr hybrids in Nosler cases at 2820 fps. We all know that the 7 SAUM is capable of much higher speeds, &#8220;but at around 2820 fps the load/rifle combo will hammer the X-Ring anywhere under any conditions&#8221; SFC Green said.</p>
<p><img src="http://accurateshooter.net/pix/swnsat1803.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"><br />
<i>F-Open rifles on the firing line at the Ben Avery Shooting Facility in Phoenix, Arizona.</i></p>
<p>Most shooters jump right into magnum territory velocities when testing, missing out on better precision at standard chamber speeds. For example, my 30 KMR can easily reach 2880 fps with 230gr Hybrids, and it actually shoots pretty good. But the same rifle at around 2770 fps will absolutely hammer the X-Ring in any condition anywhere. When it’s all said and done, F-Class is a long-range shooting competition at a known distance which requires extreme precision and accuracy. It is not a speed race.</p>
<p><strong>IMPORTANT &#8212; Case-Head Dimensions Do Make a Difference</strong><br />
<img src="https://accurateshooter.net/pix/fmags23x4.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
<p>Magnums, when shot within reasonable velocities, on average will give <strong>better case life</strong> due to the bigger case + lower pressure and “more meat” in the case-head area. For example a 7 SAUM case will outlast a .284 Win case when both are loaded to around 2900 fps.</p>
<h2>Disadvantages of Magnum F-Open Cartridges</h2>
<p>Perhaps the biggest disadvantage linked to magnums is recoil. Some people complain about developing the “gun shy” syndrome after shooting a magnum for a while. <strong>Muzzle blast and recoil are significantly more pronounced in magnums</strong>, but that can be easily managed with a properly-built rifle equipped with appropriate recoil mitigation hardware such as RAD and the various butt plates.</p>
<p><img src="http://accurateshooter.net/Blog/speedybret01.jpg" alt="F-Open f-class recoil reduction buttpad"><br />
<i>F-Open rifle equipped with recoil reduction buttpad system.</i></p>
<p><strong>Barrel Life &#8212; &#8220;Barrels are Expendable Components&#8221;</strong><br />
It is true that certain magnums can torch a barrel in just a few hundred rounds. But the same is true when improving a 6BR to 6 Dasher for example &#8212; barrel life might be reduced significantly. More powder = more heat = diminished accuracy after a certain round count. In my experience, a F-Open magnum’s barrel life is very close to high-performance standard cartridges such as the .284 Shehane or .284 KMR. I “retire” my barrels around 1200 rounds regardless of the cartridge being a magnum or not. After that many rounds most barrels will still shoot OK but will copper up, and you will start seeing those unexplained vertical 9s. The bottom line is this, barrels are expendable components very much like brass. You can’t get the performance of .300 WSM and the barrel life of the .308 Win at the same time. If you want to race in NASCAR, fuel mileage should not be the top priority!</p>
<h2>Top Magnum Cartridge Types Used in F-Class Open Division</h2>
<p><big><b>.300 Winchester Short Magnum</b></big><br />
The .300 WSM (Winchester Short Magnum) tops the popularity chart in F-Class Open division. It has been used to win numerous National championships and has set many National records. The .300 WSM&#8217;s short/fat case shape, with minimal body taper and 35-degree shoulder, contribute greatly to its outstanding performance at long range. Components are readily available as well. Best brass remains to be Norma, although ADG is just as good and some would even say better, but it is more expensive and harder to get at this time.</p>
<p><center><img src="https://accurateshooter.net/pix/hunt300wsm04.png" alt=".300 WSM winchester short magnum  7mm .284 Win"><br />
<i>The .300 WSM has been described as a “super-sized Dasher”.</i></center></p>
<p>For the .30-cal magnums, in my opinion, the best bullets by far are made by Berger. If your rifle does not shoot 215gr, 230gr hybrids, or 210gr VLDs well, you likely have a rifle problem, NOT a bullet issue. My “go to” bullet is the Berger 230gr Hybrid. The 215-grainer is a close second, followed by Berger&#8217;s accurate but ballistically inferior 210gr VLD, which I use in calm and steady conditions.</p>
<p>Top powders for the .300 WSM are Hodgdon H4831SC and H4350. I know there are many more powders suitable for the .300 WSM cartridge, but none I have used can match Hodgdon&#8217;s consistency when shot in different geographical locations and weather conditions.</p>
<p><big><b>7mm Remington Short Action Ultra Magnum</b></big><br />
The 7mm RSAUM (aka 7 SAUM) used to be the darling of F-Open. Its case capacity and shape are about perfect for launching 180gr pills with great ballistics and precision. Its popularity faded a little, due to the lack of good brass, and the rise of the improved versions of the .284 Win which can almost match the RSAUM performance. Norma still makes 7 RSAUM brass which is pretty good but little on the soft side and hard to find. ADG is arguably producing the best RSAUM brass right now. It is very uniform, reasonably priced, and seems to hold up very well even when pushed hard. The best bullets are again made by Berger, and those are the 180gr hybrid, 184gr hybrid, and 180gr VLD. Best powders are H4831sc, H4350, and Alliant Reloder 16 and Reloder 23.</p>
<p><big><strong>7-270 WSM, 7-300 WSM, and 7 WSM</strong></big><br />
The first two are pretty much identical, the only difference being that the 7-270 WSM is necked up .270 WSM while the 7-300 WSM is a .300 WSM necked down to 7mm. I personally prefer the first one since necking-up is easier than necking-down (with fewer doughnut issues).</p>
<p>The WSM case-based 7mms will give you great velocity flexibility as well as superb precision when tuned well. In the 2013 world championship in Raton NM, I was scoring for a gentleman from Canada who was shooting 7-270 WSM. The wind was blowing pretty hard that day. On one of his shots, just before he pulled the trigger the wind gusted. I remember thinking that’s going to be an 8 for sure. The target came up a line 10! I asked him after the match what he was shooting, and he replied 180s at 3100fps. Although capable of such speeds, I think that potentially better and more consistent accuracy can be achieved at much slower speeds. The best powders and bullets are again Hodgdon and Berger respectively. Best cases are made by Norma and ADG, with Winchester being a third option.</p>
<p><img src="https://accurateshooter.net/pix/flag28402.jpg" alt="f-class magnum emil kovan wsm rsaum saum cartridge"></p>
<p><big><b>7-6.5 PRC &#8212; Popular Wildcat</b></big><br />
Last but not least on our chart is the 7-6.5 PRC. This particular cartridge is actually a wildcat. It is a <strong>6.5 PRC necked up to 7mm</strong>. It is pretty much identical to the 7 RSAUM with the only differences being a <strong>shorter neck</strong> and .01&#8243;-narrower body. Currently the 7-6.5 PRC is the most requested cartridge that I offer when building new rifles. It seems to fill the gap between the .284 Win and the larger magnums very nicely. It is capable of reaching 3000fps but most shooters are getting their best results around 2920-2950 fps. The biggest advantage of this wildcat is brass. Lapua makes super high-quality, readily-available 6.5 PRC brass. Best powders are H4831sc, H4350, Reloder 16, and Vihtavuori VV 555. The best bullet in my opinion is the 180gr Berger. I am yet to hear about a better-performing bullet in this chamber.</p>
<blockquote><p><big><strong>Conclusion</strong></big><br />
<img class="alignright" hspace="6" width="220" src="http://accurateshooter.net/pix/kovancart1605.jpg" alt="Emil Kovan F-Class competition bio photo">In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven&#8217;t already) buy a magnum action and get a magnum build for sure!</p>
<p>Emil Kovan<br />
Kovan Match Rifles LLC<br />
<a href="https://matchrifles.com" target="_blank">www.matchrifles.com</a></p>
<p><strong>Emil Kovan Competition History:</strong></p>
<p>&#8211; 2014 F-Class Open National Champion<br />
&#8211; 2015 F-Class Open National Championship, Silver Medal<br />
&#8211; F-Class Open National Championship Teams, 2015, 2014, 2013, Shooting Team Member<br />
&#8211; Over 15 wins in Regional and State Championships in Palma, F-TR, F-Open<br />
&#8211; 2013 U.S. National Team Member<br />
&#8211; 2023 F-Open Gold Medal Team USA Member, 2023 World Championship in South Africa</p></blockquote>
<p><img src="https://accurateshooter.net/pix/fmags23x5.jpg" alt="Magnum cartridges F-Open F-Class emil kovan .300 WSM RSAUM 7mm wildcat"></p>
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		<title>Sunday GunDay: .300 WSM Hunter with Carbon-Wrapped  Barrel</title>
		<link>https://bulletin.accurateshooter.com/2019/11/sunday-gunday-300-wsm-hunter-with-carbon-wrapped-barrel/</link>
		<comments>https://bulletin.accurateshooter.com/2019/11/sunday-gunday-300-wsm-hunter-with-carbon-wrapped-barrel/#comments</comments>
		<pubDate>Sun, 03 Nov 2019 17:00:43 +0000</pubDate>
		<dc:creator><![CDATA[Editor]]></dc:creator>
				<category><![CDATA[Gunsmithing]]></category>
		<category><![CDATA[Hunting/Varminting]]></category>
		<category><![CDATA[Tech Tip]]></category>
		<category><![CDATA[300 WSM]]></category>
		<category><![CDATA[Annealing]]></category>
		<category><![CDATA[Carbon Barrel]]></category>
		<category><![CDATA[Hunting Rig]]></category>
		<category><![CDATA[Manners Stocks]]></category>
		<category><![CDATA[Winchester Brass]]></category>
		<category><![CDATA[Winchester Short Magnum]]></category>

		<guid isPermaLink="false">http://bulletin.accurateshooter.com/?p=63405</guid>
		<description><![CDATA[High-Tech Hunter in .300 WSM Since its introduction in 2001, the .300 Winchester Short Magnum (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/GOTW/anders01top.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<h2>High-Tech Hunter in .300 WSM</h2>
<p>Since its introduction in 2001, the <a href="https://en.wikipedia.org/wiki/.300_Winchester_Short_Magnum" target="_blank">.300 Winchester Short Magnum</a> (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson decided to build his &#8220;ultimate long-range hunter&#8221;, he selected the .300 WSM for its accuracy and its ability to drop large game at long distances. Teaming up with Chris Matthews of LongShot Rifles, Greg developed an impressive long-range hunting rig, with high-tech components to reduce weight. The 26&#8243; barrel is a carbon-wrapped composite over a Rock Creek stainless blank. The carbon technology <strong>saved about 3 pounds</strong> over an all-steel barrel of similar length/contour.</p>
<p><img src="https://accurateshooter.net/GOTW/anders02corn.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p>The Manners Composite stock also features carbon fiber construction for stiffness and reduced weight. Greg&#8217;s carbon/carbon rifle tips the scales at just 10.8 pounds, including scope and bipod. A conventional rig could easily weigh 15 pounds or more. Greg&#8217;s carbon hunter has proven accurate as well as innovative. With 175gr Sierra MKs, the gun shoots well under 1/2-MOA out to 600 yards and beyond.</p>
<h2>The Ideal Spot and Stalk Rifle</h2>
<p><em>by Greg Anderson</em><br />
The purpose of this project was to create a hunting rifle that would be inherently accurate at long range and have an acceptable weight for hunting in rough country. I researched the question of overall weight with several gunsmiths. The smiths confirmed that while fat-contour barrels could deliver improved accuracy, there was a price to pay and a lot more weight. With a heavy barrel, the finished rifle would be most likely weigh about 15 pounds. That&#8217;s more than I wanted to haul around in the field. To reduce barrel weight, the suggested &#8220;traditional&#8221; solutions were fluting, which would reduce barrel weight by at least one-half pound, or going with a smaller diameter barrel.</p>
<p><em>The Quest for Reduced Weight without Accuracy Loss</em><br />
Fluting didn&#8217;t promise enough weight savings, and a slim, sporter barrel probably wasn&#8217;t going to deliver the kind of consistent accuracy I wanted (particularly as the barrel heated up). Accordingly, I decided to &#8220;think outside the box&#8221;. My research on lightweight barrel options lead me to Advanced Barrel Systems, (ABS) a company in Lincoln, Nebraska that once produced custom carbon-wrapped barrels. ABS President Mike Degerness could wrap a barrel to virtually any shape and diameter, allowing great stiffness even with a huge reduction in barrel weight. As the &#8220;core&#8221; for his carbon-wrapped barrels, Mike recommends a cut-rifled blank made by any of the quality cut-barrel makers. [NOTE: ABS is not taking orders at this time. You cannow get excellent carbon-wrapped barrels from <a href="https://proofresearch.com/" target="_blank">Proof Research</a>].</p>
<p><img src="http://accurateshooter.net/junepix/proofres1602.jpg" alt="Proof reasearch carbon barrel"></p>
<p><strong>Significant Weight Saving with Carbon</strong><br />
How much weight can you save with a carbon-wrapped barrel? Well a 24-inch, #7 contour ABS carbon-wrapped barrel will weigh about 2.5 pounds compared to about 5.5 pounds for a steel barrel of the same length and contour. So, this means that you can put a fat, stiff competition-contour barrel on your hunting rifle and <strong>save over half the barrel weight</strong> compared to an all-steel barrel. Saving three pounds is a blessing when you&#8217;re carrying the rifle all day long in the field. I placed an order for a 30-caliber Rock Creek barrel blank with an 1:11.25&#8243; twist and a finished length of 26&#8243;. Mike wrapped the barrel and finished it to an M24 contour.</p>
<p><strong>Carbon Can Also Improve Barrel Vibration Damping</strong><br />
One interesting benefit of carbon barrel-wrapping is that the carbon components have a vibration-dampening effect. According to ABS, the extreme rigidity of the finished composite barrel dampens the vibration nodes of the barrel making it shoot like a plain steel barrel of much greater mass. Carbon fiber has a high modulus of elasticity that has the effect of lowering the amplitude of the vibration of the barrel when fired. This is what makes the ABS barrels perform so well, according to Mike.</p>
<p><img src="https://accurateshooter.net/GOTW/anders03barrel.jpg" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p><strong>Impressive Accuracy For a Hunting Rifle</strong><br />
Looking at the targets below, one may ask, &#8220;Does the rifle always shoot this well?&#8221; The answer, not surprisingly, is: &#8220;it depends on the trigger-puller&#8221;. The rifle is capable of outstanding accuracy. But it took some time and effort for me to develop the skills required to shoot up to the rifle&#8217;s inherent accuracy. I nearly always practice prone from bipod. Initially, I was getting horizontal stringing until I changed my grip and learned to be more consistent from shot to shot. Shooting a heavy-recoiling .30-caliber rifle from the ground is not the same as shooting a .223 Rem from the bench.</p>
<p>
<table border="0" width="600" cellpadding="0" bgcolor="000000"><TR align="middle">
<td><font face="Verdana" size="3" color="ffffff"><b>3-Shot Group at 200 yards | 6-Shot Group at 500 Yards</b></font></td>
</tr>
<tr>
<td><img border="0" src="https://accurateshooter.net/GOTW/anders08targ.jpg"><img border="0" src="https://accurateshooter.net/GOTW/anders09targ.jpg"></td>
</tr>
</table>
<p><img src="https://accurateshooter.net/pix/hunt300wsm04.png" alt="300 WSM winchester short magnum carbon manners hunter hunting"></p>
<p><strong>Completing the Project Build</strong><br />
To smith the rifle, I selected Chris Matthews of LongShot Rifles, LLC because of his expertise with the WSM cartridges and long-range shooting equipment. Because cost was a factor, we decided to use a donor Remington long action that had been used on a Remington 7mm magnum. Chris trued the action and we had Dave Kiff from Pacific Tool &#038; Gauge grind us a bolt to fit the action more perfectly. Chris chambered the Rock barrel and installed a .300 Badger recoil lug.</p>
<p><strong>Carbon-reinforced Hunting Stock from Tom Manners</strong><br />
Being a fan of carbon fiber technology, I selected an MCS-T stock from Manners Composite Stocks. These stocks have an extremely high strength-to-weight ratio and the high comb of the MCS-T gave an almost perfect alignment with the scope. The finished rifle was topped off with a Leupold 4.5-14x40mm LR scope equipped with M1 windage and elevation turrets. A Harris bipod completed the package. All up, including scope, steel rings, and bipod, my .300 WSM rifle with 26&#8243; barrel <strong>weighs 10.8 pounds</strong>.</p>
<p><img src="https://accurateshooter.net/GOTW/anders04stock.jpg"  alt="300 WSM Carbon hunting hunter rifle Manners stocks"></p>
<p><strong>Load Development for Accuracy</strong><br />
I developed a load using 63.0 grains of H4350, 175gr Sierra Match Kings with Federal 210M primers in Winchester-brand brass. This load gives 2960 FPS out of my rifle. The load would shoot sub-MOA from bipod from 100 yards to 600 yards and was adopted as the &#8220;go to&#8221; load. I have also tried the 208gr Hornady A-Max in this gun. The A-Maxs shot well but the Sierras work well for everything (paper punching and hunting) so the 175gr SMK is my bullet of choice.</p>
<p><img src="https://accurateshooter.net/GOTW/anders06bench.jpg" alt="300 WSM Carbon hunting hunter rifle"></p>
<blockquote><p><strong>Brass Prep and Annealing Are Very Important</strong><br />
The Winchester-brand brass is good, but you have to prep it thoroughly if you want good results. My brass prep consisted of turning the necks, de-burring the flash holes (inside and out), and chamfering the case necks. Using a Sinclair neck-turning tool, I turn the necks to .0135&#8243; per side. That provides a complete clean-up of the necks, which run about .015&#8243; neck-wall thickness out of the box.</p>
<p><img class="alignright" hspace="6" src="https://accurateshooter.net/GOTW/anders011anneal.jpg" alt="anneal annealing tempilaq">One thing I&#8217;ve learned to do is anneal the brass every 3-4 firings. I started to do that after I noticed that the force required to seat bullets became inconsistent after just a few loading cycles. I also experienced flyers that were going out of the group for no apparent reason. Annealing the cases every 3-4 firings has eliminated most of the unexplained flyers and annealing has also made bullet seating much, much more consistent. I&#8217;ve also noticed a significant improvement in my groups at 500 and 600 yards now that I anneal regularly. Group sizes at 600 yards can be as much as 2&#8243; smaller with annealed brass than with un-annealed, work-hardened brass.</p></blockquote>
<p><i>Greg Anderson was successful with his .300 WSM on his very first hunt, dropping a nice buck at 364 yards. Chris reports: This was on some private land in Nebraska. As daylight faded&#8230; there were a couple of bucks, but one looked to be the best of the lot. The buck gave me a broadside shot ranged at 364 yards. I settled behind the scope and took one shot. It hit right where I aimed and the buck just folded.&#8221;</i></p>
<p><img width="600" src="https://accurateshooter.net/GOTW/anders05deer.jpg" alt="deer hunting buck 300 WSM"></p>
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		<title>Sunday GunDay &#8212; 7mm WSM Hunter with Match-Grade Accuracy</title>
		<link>https://bulletin.accurateshooter.com/2019/07/sunday-gunday-7mm-wsm-hunter-with-match-grade-accuracy/</link>
		<comments>https://bulletin.accurateshooter.com/2019/07/sunday-gunday-7mm-wsm-hunter-with-match-grade-accuracy/#comments</comments>
		<pubDate>Sun, 07 Jul 2019 11:10:45 +0000</pubDate>
		<dc:creator><![CDATA[Editor]]></dc:creator>
				<category><![CDATA[- Articles]]></category>
		<category><![CDATA[Bullets, Brass, Ammo]]></category>
		<category><![CDATA[Gear Review]]></category>
		<category><![CDATA[Hunting/Varminting]]></category>
		<category><![CDATA[.284 Short Mag]]></category>
		<category><![CDATA[7 WSM]]></category>
		<category><![CDATA[7mm WSM]]></category>
		<category><![CDATA[Elk Hunting]]></category>
		<category><![CDATA[McMillan Stocks]]></category>
		<category><![CDATA[Winchester Short Magnum]]></category>
		<category><![CDATA[Wyoming]]></category>

		<guid isPermaLink="false">http://bulletin.accurateshooter.com/?p=62891</guid>
		<description><![CDATA[Ric Horst&#8217;s 7 WSM is a game-slayer with serious long-range accuracy. Here&#8217;s a hunting rifle (with tactical trappings) that performs as well as some purpose-built benchrest rifles, delivering half-MOA ten-shot groups at 1000 yards&#8211;from bipod no less! That was noteworthy in itself. But Ric&#8217;s rifle, built to take game in Wyoming&#8217;s backcountry, also proves the [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="https://accurateshooter.net/pix/wyom7mm01.jpg" alt="wyoming 7mm wsm winchester short magnum elk rifle hunter hunting Win mag"></p>
<p>Ric Horst&#8217;s 7 WSM is a game-slayer with serious long-range accuracy. Here&#8217;s a hunting rifle (with tactical trappings) that performs as well as some purpose-built benchrest rifles, delivering half-MOA ten-shot groups at 1000 yards&#8211;from bipod no less! That was noteworthy in itself. But Ric&#8217;s rifle, built to take game in Wyoming&#8217;s backcountry, also proves the viability of the 7mm Win Short Mag as a true precision cartridge. With the capacity to drive hard-hitting, ultra-high-BC bullets, the 7 WSM is a bonafied rival to the big 30s. This rifle sets a very high bar for long-range hunting rigs. </p>
<p><img src="https://accurateshooter.net/pix/horsttopb600x440.jpg"></p>
<p><b>The Challenge: Creating the Ultimate Long-Range Hunting Rifle</b></p>
<p><font color="006699">Q: Tell us how you got interested in the 7 WSM and how you got started on this project?</font></p>
<p>Ric Horst: Chris Matthews and I were invited to help out with a new hunting show on a cable network. We wanted to showcase a rifle that wasn&#8217;t typical for the TV program which was about Antelope and Mule Deer hunting in Wyoming. We considered a variety of calibers, but then Sierra announced their new 175gr (.284) MatchKing and that got our attention. In Wyoming, the key thing in choosing a caliber is the availability of good high-BC bullets&#8211;the wind will own you out here. After seeing Sierra&#8217;s projected BC for the 175s this seemed to be a no brainer. So I told Chris to make the rifle a 7mm WSM.</p>
<p><font color="006699">Q: What were your objectives with this project rifle? Sounds like you wanted to build a state of the art long-range hunting rig?</font></p>
<p>Our goals were simple&#8211;we wanted a tack-driver with long-range capabilities, from 400 to 1000 yards. Really, at the time, the choice of the 7 WSM was easy&#8211;no one else was really doing it, and if they were, they weren&#8217;t talking about it. So we wanted to be the first make it work, one way or another. There were actually no real surprises or problems along the way, other than it was the first time I was shooting a 7mm and the accuracy of the 175gr bullets was better than I expected. I have total faith in Chris&#8217;s gunsmithing abilities. This 7 WSM is the sixth rifle he&#8217;s built for me&#8211;and they&#8217;ve all been tack-drivers.</p>
<p><img src="https://accurateshooter.net/pix/horstmcmhtg.jpg"></p>
<p><font color="006699">Q: Give us your perspectives on living and shooting in Wyoming. What makes it such a great hunting ground? How do the game mix and terrain dictate your selection of a rifle?</font></p>
<p>My requirements for my rifles are, I guess, unique. I like tactical-style rifles. This &#8220;style&#8221; seems to fit my type of hunting here in Wyoming&#8211;tough, rugged terrain where you need to be able to make the long shot should one present itself. Living in Wyoming? Well, if you choose to live in the &#8220;out of town&#8221; places you need to be well-prepared and tough. Going to town means a 50-mile trip. You don&#8217;t just run to the convenience store if you need something. Plus the weather is hard in the winter and always windy. We joke that we have just two seasons, three months of summer and nine months of winter. Our spring and fall are each about two weeks long.</p>
<p>Despite the weather, Wyoming is a great place for a hunter. Game here is second to none: deer (whitetail and mulies ), antelope, elk, sheep, moose, plus varmints galore. What is great about my location is that I can shoot just about anytime I want. I have the ability to shoot as far as 3500 yards out my back door if I choose. Here&#8217;s a shot of my playground.</p>
<p><img width="600" src="https://accurateshooter.net/pix/horst4by4x580.jpg"></p>
<p><b>Putting It Together: Exceptional Components and Accurate Ammo</b></p>
<p><font color="006699">Q: Your 7 WSM has logged 10-shot groups at 1000 yards that could win many 1K benchrest matches. What kind of components does it take to deliver this kind of accuracy?</font></p>
<p><img align="right" hspace="12" src="https://accurateshooter.net/pix/horstknobsx300.jpg">There is nothing super-exotic in this rifle, but it IS fitted out with some of the best components on the market. We did start with a factory action, however, a Remington 700 short action. Chris trued the action, added an SSG over-sized bolt knob, and fitted the action with a Broughton 5C, 9-twist #7 contour barrel finished at 24&#8243;. To reduce recoil we added a Badger brake. The stock is a fiberglass <a href="http://www.mcmfamily.com/" target="_blank">McMillan HTG</a> (General Purpose Hunting) stock in Desert Camo. (This McMillan stock design replicates the original M40A1 Marine Sniper Rifle stock.) Since this is a repeater we added a Wyatts Mag Box. The gun features Badger bottom metal, Badger scope rail and Badger Rings. The Scope is a 4-16 Nikon Tactical, which, so far, has proven to be excellent. All the metal is Teflon-coated in Mil-Spec OD Green. I have a bubble-level mounted on the scope rail.</p>
<p><font color="006699">Q: To achieve the results you&#8217;re getting you must have exceptional hand-loads. What is your reloading procedure and do you have any &#8220;secret tips&#8221; to share?</font></p>
<p><img align="left" hspace="8" src="https://accurateshooter.net/pix/7mmwsmx300b.gif">I use Winchester-brand brass and Winchester Large Rifle Magnum primers. My current load is 64.0 grains of H4831sc for the Hornady 162s (2950 fps) and 61.0 grains of H4831sc for the Sierra 175s (2830 fps).</p>
<p>The only sizing dies I have used are the Basic Redding FL dies&#8211;I have since started using the Forester Ultra-Seater and used it when I shot the outstanding groups. My reloading technique is pretty basic. I full-length size and trim all to length. I use the RCBS powered Trim Mate™ station to do most of the brass prep. I do use the VLD case mouth deburrer. I uniform the primer pocket and chamfer as well. I then fire-form those prepped cases. I&#8217;ve noted that the new brass usually shoots just as well as fire-formed cases. I then use the FL die to bump the shoulder back .002&#8243;. I haven&#8217;t really noticed and major difference between Forester and Redding dies except price. I don&#8217;t have any &#8220;special&#8221; secret loading techniques. If you use quality components, I&#8217;ve found that you don&#8217;t need to weigh this weigh that etc. I tried that for years and it never really showed results to justify the time and effort. I quit doing all the weighing ( except for bullets ) and I shoot just as well. The two things I am anal about are the powder charge and seating depth&#8211;these all have to be </I>exactly</I> the same for each round!</p>
<p>I do take time to uniform the brass. First, when I get a bag of brass, I&#8217;ll check to make sure all the flash holes are centered, and I&#8217;ll pitch the ones that aren&#8217;t. Then I&#8217;ll measure the shortest case and trim all to that length (after ensuring that fits my chamber). Next, I&#8217;ll uniform the primer pockets, and debur and bevel the flash hole on both sides. Beveling both sides is one trick I think helps keep ES down. By beveling the flash side it basically takes the flash and tapers/funnels it to the hole. I think you get more consitency with the primer flash this way. Finally I&#8217;ll debur/champfer the inside and outside of the neck using a VLD chamferer.</p>
<p>After firing the cases once, I clean them all up and make one pass on the neck turner just to &#8220;clean&#8221; the necks to a consistient diameter. Note, I am not necessarily turning for a specific diameter because I have enough clearance to start with. I do this light turn just for consistency. Sometimes the neck turner might only shave a bit off one side.</p>
<p><font color="006699">Q: What&#8217;s your load-testing procedure? Do you have any special methods to evaluate/tune your loads?</font></p>
<p>Again, my methods are pretty simple. I start with the Sierra Load Manual, select the bullet weight, then find the max load for a recommended accurate powder. I like Hodgdon powders, so I start with an &#8220;H&#8221; powder with an appropriate burn rate, drop the &#8220;max&#8221; load about 0.5 grains and start there. Typically there is a sweet spot within half a grain up or down from that starting point. I usually seat my bullets to touch the lands or seat just in a bit. I feel this makes up for any bullet-run out when seating them.</p>
<p>When load-testing, I try to get 100-yard groups to be half an inch or less (quarter-MOA is pretty good for me, but not something I can count on regularly.) I then go to the 300- and 500-yard steel plates to see if the load holds its accuracy. If it does, then the load is good to go. However, I will shoot a 5-shot group every now and again to see if I am still in tune. In fact I was re-testing the 162gr A-Max and 175 gr SMK loads the day I shot the screamers at 1013 yards. Two great groups back to back.</p>
<p><font color="006699">Q: How does your 7 WSM perform in terms of recoil and accuracy? Has it met your expectations?</font></p>
<p><img align="right" hspace="6" src="https://accurateshooter.net/pix/horstleftx400.jpg">This rifle is by far one of the most fun rifles I have ever had. The recoil is very minimal with either of the loads and the rifle just plain flat-out shoots. The break-in took all of 21 rounds I think. This rifle shoots sub-2&#8243; groups at 500 yards all day every day (often closer to 1&#8243;). Note that I don&#8217;t do any shooting from a bench and rests except for the initial load work up. The rest of the time I shoot from a bipod. I would really like to stress that I shoot exclusively with bi-pod and &#8220;sand-sock&#8221;. So many guys out there think that you have to shoot from a bench to get outstanding results. This simply isn&#8217;t true. If you are a disciplined shooter and have correct shooting techniques you can do amazing things from any shooting position. Long Range doesn&#8217;t have to be from a rest or bench!</p>
<p>What makes this rifle special is that it has an identical twin, built by Chris for my hunting partner Steve. Both rifles shoot exactly the same&#8211;same accuracy, same velocity, same trajectories. I never shot a 1K group with Steve&#8217;s gun, but at other distances, including 500 yards, it has performed identically to mine. I shot a sub-moa group of 12 shots one day with the Twins. I shot six shots from each rifle, alternating rifles between shots. Remember this is from the prone position and off a bipod&#8211;same load, two different rifles&#8211;and it produced a single, sub-MOA group. Now that&#8217;s consistency. Both these rifles I call point and shoot rifles&#8211;point them on target and they&#8217;ll shoot it.</p>
<p><font color="006699">Q: What technique do you use when shooting from bipod?</font></p>
<p>I basically do Froggy&#8217;s technique when shooting from a bipod. I get my natural point of aim, then push forward a bit to pre-load the bipod legs. In gripping the stock, I use just my two middle fingers to apply firm pressure straight back into my shoulder. I&#8217;m careful not to torque with the thumb or pinky finger. With my focus on the intended point of aim, I&#8217;ll let the cross hairs blur a bit and gently press the trigger until it goes boom. Then follow through, watch for the impact, and chamber the next round.</p>
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<td><font face="verdana" size="4" color="ffffff">Looking Out to 1000 Yards, and the Results from Ric&#8217;s 7 WSM</td>
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