As the .30-Cal cartridge of choice for the AR15 platform, the 300 AAC Blackout, also known as 300 BLK, has become quite popular with black rifle owners. You can now purchase quality factory ammo and even premium Lapua 300 BLK brass. Some folks wonder — “why consider a 300 BLK”? Here are the key reasons you may want to acquire a 300 AAC Blackout upper for your AR:
FIVE REASONS to Shoot the 300 BLK:
1. Easy Conversion: Use your current AR lower, bolt/carrier, buffer, and magazine. The only part you need to change is the barrel. 2. Hunting Capability: 300 BLK conforms to state hunting regulations which may require a cartridge larger than .22 caliber. The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5. Great Brass: No Case forming is required — just buy Lapua 300 BLK brass.
The 300 AAC Blackout was created by Advanced Armament Corp. and Remington primarily for the military as a way to shoot .30-caliber bullets from the M4/AR15 platform while using standard magazines. As explained by Robert Silvers, AAC’s R&D Director: “[You can] shoot 30 caliber from your AR while still using normal magazines with full capacity. Even the bolt stays the same, and all that changes is the barrel.” CLICK HERE for more information.
The concept of putting a .30-caliber bullet in a shortened 223 case has been done before, but not as an industry-wide standard that anyone can make products for, royalty-free. SAAMI, the industry standards organization, adopted and standardized the AAC 300 Blackout earlier this year. The SAAMI diagram for the 300 BLK is shown below.
Affordable Factory 300 BLK Ammo is Available
Remington now sells a variety of 300 BLK ammo: 1) 125 grain open-tip match with a custom Sierra bullet; 2) 220gr subsonic, and 3) 125gr AccuTip (photo below). While the 300 BLK is easy (and inexpensive) to reload, Remington and AAC recognized that most people are not reloaders. So Remington will be budget-priced UMC-brand 300 BLK ammo through at just $12.99 per box — that’s less than most other rifle cartridges than are more powerful than the .223.
The 300 AAC Blackout definitely works for hunters who want to use their AR15-platform rifle. And it also serves as a specialized 30-Cal “rule-beater” that lets 3-Gun competitors “make major” with a low-recoil cartridge that also offers long barrel life. For those who need to run a .30-caliber cartridge from a standard AR15 platform (as opposed to the AR10), the 300 AAC Blackout makes sense. But for hunters using a bolt gun, there are any number of tried and true options, such as the 7.62×39, .30-30, and, of course, the .308 Winchester (7.62×51 NATO).
WARNING: With some bullet options (and setback during chambering) 300 Blackout rounds will go into a .223 chamber and fire. Putting a .308-caliber bullet in a .224-diameter barrel is a recipe for disaster. You can blow up your gun and sustain serious injury. That’s why we recommend you have a dedicated 300 BLK upper and mark your magazines. Also, always, always check your .223 magazines to ensure no 300 BLK rounds worked their way in when you loaded the mags. There have been a number of Kabooms recorded from 300 BLK rounds fired in a .223 Rem/5.56×45 chamber. CLICK HERE to see actual 300 BLK in .223 Rem chamber.
Sean Murphy, Nightforce Optics Marketing Manager, shoots what he sells. Sean recently competed at the inaugural PRS Gas Gun match held February 17-19, 2017 at the CORE Shooting Solutions range in Baker, Florida. Here is Sean’s report:
PRS Gas Gun Match at CORE by Sean Murphy
The series-opening PRS Gas Gun match is in the books. Ryan Castle put on a fun match to help set the tone for what this series will become. There were plenty of challenges for both the PRS and 3-Gun competitor. The best way I can explain it is to go as fast as you can because time matters, and then don’t miss because the penalties for leaving targets are harsh. I am looking forward to shooting more of these matches and would encourage any of my PRS and 3-Gun friends to give one a try.
Congratulations to the USAMU’s Tyler Payne (right) for the exhibition on how to shoot this and a very commanding overall win. [Payne won overall and high military with a score that was 25% higher than the next-best finisher.] Also congrats to Rhett Walters and Terry Cross for their first-place and second-place finishes in Tac Lite (and 2nd/3rd overall). I was fortunate to place third in Tac Lite and 4th overall for the match. Thank you to FALKOR Defense for the prize table contribution.
Squad 4 was a lot of fun and I was fortunate to shoot with some of our nation’s finest warriors and competitors. It was great to see various military guys in attendance refining their craft. It was great as always to see all of my friends at the match and make new ones. While I love shooting, the people are why I keep coming back.
Gas guns to 800 yards, yep there are targets down there somewhere… Jeff Cramblit Facebook photo
Gas Gun Match Loads — Short Range vs. Long Range The .223/5.56 guns had some lag time waiting on shot impacts. I believe the long-term solution may be to find a light and fast load for closer stages for near-instant reaction time and use a heavy load for the long shots to see splash and get the target to move a little more. — Sean Murphy
GEAR Selections for PRS Gas Gun Matches
OPTICS for the PRS Gas Gun Series
I was proud to see Nightforce Optics well represented on guns, with the ATACR 4-16×42 F1 seeming to be a solid choice for many competitors. My optic of choice is an ATACR 16x F1 with a Horus H59 reticle. For this style match the magnification range, Zero-Hold adjustment and wide field of view are a perfect combination. We had some smoke roll in from area fires on Sunday, and the ED glass was an aid in finding the targets in deep haze and shadows. Because of the time component [stages are “on the clock”], being able to shoot with holdovers is key, as well as being able to make fast corrections on follow-up shots. The H59 or TReMoR 3 will be strong contenders for this.
BARREL Choice — Proof Carbon-Wrapped
I shot a 20″ PROOF Research carbon fiber-wrapped barrel that was expertly installed by Greg Hamilton himself. It shot lights out while keeping the gun light and handy for movement and getting in/out of multiple positions.
TRIGGER Choice
While I like the Geissele Automatics, LLC Super 3-Gun (S3G) trigger for carbines as it’s really fast, I went with their DMR trigger for a more refined break that helped on the 600-800 yard shots.
The preferred rifle color choice at the first PRS “Gasser” Match was definitely black…
AMMUNITION Choice (.223 Rem/5.56x45mm)
My ammunition of choice for this match was Black Hills 77gr .223 Rem. The ammo shot outstanding, especially at longer ranges. I believe the long-term solution may be to find a light and fast load for closer stages for near instant reaction time and use a heavy load for the long shots to see splash and get the target to move a little more. The .223/5.56 guns had some lag time waiting on shot impacts, so finding a way to speed that up over 20 or so shots might save a few seconds per stage.
BALLISTICS Solver and Wind Meter
I continue to love my Kestrel 5700 AB. It was very confidence inspiring to show up at the range, get my atmospherics and run accurate data to get first round hits all the way to 800 yards.
BAGS and Gear
The precision rifle game seems to require an assortment of bags and other gear for the various shooting positions to conquer. My Armageddon Gear and Wiebad bags and gear continue to deliver and hold up to much abuse.
PRS Gas Gun Series Rules
For the new PRS “Gasser” Competition, the PRS developed rules on gun types, scoring, match timing, penalties, safety and other key topics. CLICK HERE for Full PRS Gas Gun Series Rules.
Scoring and Penalties
The Gas Gun Series utilizes a time plus penalty-based scoring system for all match scoring. This means the score is the shooter’s total combined time on all stages plus any penalties accrued.
Penalties are as follows:
30 seconds for any rifle targets not engaged or neutralized.
15 seconds for any pistol targets not engaged or neutralized.
15 seconds for hitting a “No Shoot” target.
No more than 50% of the stages at a match can utilize an unlimited round count. At least 25% of the targets in Gas Gun Series match must be 2 MOA or smaller. Max distance is 800 yards.
Open Division: The Open Division rifles will not exceed a caliber of .30 or a velocity of 3,200 fps. A match DQ will result any rounds over the speed limit of 3,200 fps (+/- 32 fps for environmental factors and equipment discrepancies). Match Officials may request at any point during a match that a competitor fire their rifle through chronograph. If the bullet exceeds the 3,200 fps speed limit, the shooter will receive an automatic match DQ.
Tactical Light Division: Intended to allow competitors the opportunity to compete using traditional military and law enforcement caliber. This promotes Active Duty military and law enforcement competitors use of their Service and Department-issued rifles. Tactical Light Division rifles are restricted to 5.56 NATO/.223 Remington calibers only. Bullet weight cannot exceed 77 grains and muzzle velocity cannot exceed 3,000 fps.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Brownells — Remington 700 SA Receiver with Trigger, $399.99
Here’s a genuine Remington short action receiver with X-Mark Pro trigger for $399.99 (or just $364.50 with coupon M3J). You can use this blued Short Action (SA) for your next hunting or varmint rifle. These Rem actions will also work with many third-party modular chassis systems. DOES NOT include receiver plug screws, recoil lug, triggerguard, triggerguard screws, and magazine components. NOTE: The sale price is $399.99, but you can save $35.00 with code M3J, good for Today Only, 2/20/2017.
2. Amazon.com — 34 dB Noise Rating Ear Muffs, $17.97
These 34 dB NRR earmuffs provide excellent sound protection without being too heavy and bulky. The lower section of the muff is trimmed for a narrower profile — that helps with rifle and shotgun stocks. The headband is adjustable and has comfortable padding. These Pro For Sho Muffs have earned a 4 1/2 star consumer rating, with over 1,600 Amazon customer reviews. NOTE: These fit pretty tight. If you have a very large hat size you might want a different brand.
3. Midsouth — Nosler Blem Bullets at Big Discounts
Nosler Factory Seconds are available at deep discounts from Midsouth Shooters Supply. These have correct weights/dimensions but may have minor cosmetic blemishes — such as tip discolorations or jacket water spots. The Accubond and Ballistic Tip bullets work great for hunting — your prey won’t care about water spots. And the RDF match bullets in .224 (70 grain) and .308 (175 grain) calibers can definitely do the job. But you need to act soon — quantities are limited. Once these factory seconds are gone, they’re GONE! Order now and save up to 53%.
4. Natchez — Special 5 Reloading Press Kit, $199.99
Looking for a great holiday gift for a family member getting started in metallic cartridge reloading? This RCBS Kit has everything a new reloader needs: single-stage press, powder measure, scale, powder trickler, priming tool, cartridge tray, “rocket” chamfer tool, case lube and more. This is an excellent entry-level reloading kit, on sale for just $199.99 at Natchez Shooters Supplies. We like the relatively compact Special 5 press for most reloading duties. Eventually you may want to add an additional, large heavy press, but this will get the job done. For the combined package, with all the tools one needs to hand-load quality ammo — this is a stunningly good deal at $199.99.
5. CDNN Sports — Ruger American Ranch Rifle (Tan), $349.99
Here’s a nice little varmint rifle from Ruger with good features and performance at a killer price: $349.99. You could pay that much just for a barrel. This .223 Rem rifle features a 16.5″ hammer-forged barrel barrel threaded 1/2″-28 at the muzzle for brake or suppressor. The action, which features a 70° three-lug bolt, and Picatinny-style scope rail, sits in an aluminum bedding block. The crisp trigger adjusts down to 3 pounds. With a weight (before optics) of 6.1 pounds, this is a handy carry-around varminter. We like this rifle. For $349.99 it’s a steal.
6. Midsouth — 17 HMR V-Max Ammo, $9.95 for 50 rounds
Need 17 HMR ammo for your planned 2017 varmint safaris? Then grab this Hornady V-Max ammo while you can at $9.95 for a 50-round box. This is a great price. Other vendors are selling the same Hornady ammo for as much as $15.00 per box. We’ve used this ammo and it was very accurate out of both semi-auto (Savage A17) and bolt-action (CZ 455) 17 HMR rifles.
7. Able Ammo — 247 Rounds .223 Rem, HP Bullets
Here you go — instant varmint safari. This Hornady-made .223 Rem ammo features quality hollowpoint bullets, rather than the not-so-accurate FMJ bullets with most bulk .223 ammo. This stuff is much more accurate (with lower ES/SD) than other low-priced ammo. Users report sub-MOA accuracy with this stuff. If you’re planning a varmint safari this spring but don’t have the time (or gear) to reload, pick up a couple boxes of this stuff and you’re good to go. There are 247 rounds in each polymer ammo “can”. This ammo usually comes loaded with Hornady’s XTP (eXtreme Terminal Performance) bullets which work great on varmints.
8. NRA & MidwayUSA — NRA Life Membership, $600.00
Here’s the best deal going right now on an NRA Life Membership. This normally costs $1500.00, but if you CLICK HERE, you can get a life membership for just $600.00, thanks to an NRA/MidwayUSA promotion. You can also save on 1-year, 3-year, and 5-year NRA memberships. Note: This is a limited-time offer.
Boresighting the old-fashioned way — by looking down the bore of a rifle at a target — is not difficult. With a conventional bolt-action rifle, visual bore-sighting can be done quickly and easily: rest your gun securely on bags, remove your bolt and set up a 50-yard target with a large bright orange or black center circle. Look through the back of the action and you should be able to sight down the bore with your own eyes just fine. There’s no need for expensive hardware. In fact it may be easier to bore-sight the “old-fashioned way” rather than try to see a laser in bright sunlight at 50 yards (or even 25).
However, with lever guns and semi-auto rifles, including the popular AR15, M1 Garand, and M1A service rifles, the design of the receiver may make it virtually impossible to sight down the bore with the naked eye. That’s where a modern laser bore-sighting device comes in handy. For those situations where a bore-sighting tool is actually needed, we recommend a laser bore-sighter that fits inside your chamber. The in-chamber configuration is more fool-proof, and is inherently safer.
In-Chamber Laser Should Be Safer
Among the laser bore-sighters available on the market, we strongly favor those that fit in the chamber, rather than in the bore. With muzzle-entry laser bore-sighters, you could have a nasty accident if you forget to remove the device. There is always the chance you could chamber and fire a round with the muzzle-entry bore-sighter still in place. Instant Kaboom. That has happened more than once. With an in-chamber bore-sighter, there is no possibility you could chamber a loaded round with the bore-sighter in place. That’s an important safety advantage. Sightmark in-chamber bore-sights are shown in the video below. You can see that, with the bore-sighter in place, you cannot chamber a live round.
In-Chamber Bore-Sighters for Rifles Sightmark offers compact laser bore-sighters that fit inside your firearm’s chamber. The laser is housed in a brass assembly machined to duplicate a cartridge. These are easy to use — simply twist the end-cap to activate the laser, then place the bore-sighter in the rifle’s chamber. The affordable ($29.99 – $35.77) Sightmark boresighters are offered in a wide variety of pistol, shotgun, and rifle “chamberings”. Rifle options include: 17 HMR, .223 Rem, 22-250 30/30, .308 Win Family, .25-06/.270/.30-06, 6.5×55, .270/.300 WSM, .300 Win Mag, 50 BMG, and many other large hunting calibers. SEE Full Product Line.
Cabela’s also offers a Professional .223 Laser Chamber Boresighter that fits in a .223 Rem rifle chamber. This $59.99 unit, shown below, can be adapted to other chamberings by adding a caliber-specific sleeve over the .223 core unit.
Adapt Basic Unit to other Calibers with Sleeves
Cabela’s Professional .223 Laser Chamber Boresighter unit can be used for a variety of chamberings by fitting additional $19.99 caliber-specific sleeves (sold separately). Each sleeve is precision-machined from brass to SAAMI specs. One purchaser notes: “Extremely well made, the fit is so precise that I would recommend using a drop or two of light oil on the 223 laser insert before fitting it into the sleeve.” Available chamber sleeve calibers include:
The Rockies, Great Lakes, and Northeast are bracing for a major storm this weekend, bringing cold winds, ice, and plenty of snow. Many Northern states have already seen lots of the white stuff. It seems like it will be a White Christmas for many. Does that mean there will be no more gun fun ’til spring? Heck no — just grab your snow shovel, load up your rifle, and go shooting. Here’s how Forum Member Nick (aka “ChevyTruck 83″) coped with winter’s fury back in 2012. Never underestimate the resourcefulness of a dedicated AccurateShooter Forum member….
We admire the fortitude of Forum Member Nick who braved wintry December weather to enjoy a day at the range in his native Pennsylvania. A little snow on the ground couldn’t stop this intrepid shooter, who brought snow shovel and arctic gear to his range session. Folks, here’s a true “hardcore” fan of shooting! Despite the “relentless snow”, Nick reports that “at least it wasn’t windy”. Nick shot a variety of long guns, including his .22LR rimfires, a .223 Rem, and a .308. Not daunted by the cold, Rick said it was fun to “play like a kid once in a while.” That’s the spirit!
Nick reports: “There was no wind to speak of — just relentless snow. I’ll tell you what — it’s awesome to get out and play like a kid once in a while.”
Nick’s foray into the winter wonderland really puts things in perspective for “fair-weather” shooters. After viewing Nick’s Forum thread about his snowy range session, fellow Forum member DennisH observed: “I will never complain about our super hot sugar cane fields in south Louisiana ever again! We can hold matches 12 months a year. I have NEVER had, owned, or used a snow shovel.”
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Amazon — Howard Leight Electronic Muffs, $26.99
Act quickly — this is a DEAL of the DAY on Amazon! We’ve never seen a lower price on these popular electronic muffs, which are Amazon’s #1 seller in the category. The price goes back up tomorrow! Every shooter should own a pair of electronic muffs, even if you prefer shooting with earplugs and/or standard muffs. Electronic muffs are great when you are doing spotting duties or are working near the firing line. They allow you to hear ordinary conversations while still providing vital hearing protection. Right now Amazon.com has the Howard Leight Impact Sport Electronic Muffs on sale for just $26.99 (Deal of the Day). See All Price Options. NOTE: For regular, sustained shooting we recommend muffs and/or earplugs with a higher NRR rating.
2. CDNN Sports — Ruger American Ranch Rifle (Tan), $349.99
Here’s a nice little varmint rifle from Ruger with good features and performance at a killer price: $349.99. You could pay that much just for a barrel. This .223 Rem rifle features a 16.5″ hammer-forged barrel barrel threaded 1/2″-28 at the muzzle for brake or suppressor. The action, which features a 70° three-lug bolt, and Picatinny-style scope rail, sits in an aluminum bedding block. The crisp trigger adjusts down to 3 pounds. With a weight (before optics) of 6.1 pounds, this is a handy carry-around varminter. We like this rifle. For $349.99 it’s a steal.
3. Amazon — Caldwell Long Range Target Cam System, $329.49
Forum members have purchased this Caldwell Target Cam System and they’ve found that it works reliably, providing a clear signal to any WiFi-enabled mobile device (smartphone, iPad, Laptop). One member specifically tested the unit at 1000 yards and it functioned fine. NOTE: This system does NOT have a zoom camera lens, so you need to position the camera within 10 yards or so of the target. But if you place it to the side a bit, this shouldn’t be a problem. This system comes with a nice, fitted carrying case that holds camera, transceivers, antennas, and stands. You get a very capable system for under $330.00 (Amazon price includes free shipping for Prime members). You can also get this system from Midsouth for $357.02 (shipping extra).
Got patches? Here’s a great deal on 100% cotton flannel patches. There are many sizes available, starting at $8.99 for 800 one-inch “17 Cal” patches. For 6mm rifles, we actually like the 1.25″ round “22/223″ sized patches priced at $11.99 for 800. Choose either round patches or square patches in most sizes. We generally like round patches for use with spire-tip jags, but some shooters prefer to wrap their patches around a jag or brush and square patches work better for wrapping. The large, 2″-square .30 Cal patches cost $17.99 for 800.
5. Amazon — Frankford Quick-N-EZ Case Tumbler, $34.99
Look no further for a great deal on a reliable tumbler. We’ve used this very same machine to tumble both pistol brass and rifle cases. We like the see-through, transparent top and the large capacity — this will hold up to 350 .223 Rem cases. With 1000+ customer reviews on Amazon.com, this Frankford Quick-N-Easy Case Tumbler has earned a 4.5-star rating. If you need a tumbler, you might want to order soon — this is the best price we’ve seen in a while.
6. CDNN Sports — 45 ACP Ruger American Pistol, $399.99
At $399.99, this modern .45 ACP Ruger American Pistol costs hundreds less than premium polymer handguns from Europe. Compared to a Glock 21, it has better sights, a better trigger, and better ergonomics. Compared to an HK USP it has a lower bore axis and is way less expensive. FYI the Ruger’s low bore axis really does reduce felt recoil. The Ruger American pistol has interchangable grip panels so you can adjust the grip to your hand size. Controls are ambidextrous. Bottom line, this is a very good gun that gives up little to Glock, HK, and Walther. Buy American and save hundreds.
The RCBS Rock Chucker remains a classic — a big, strong, versatile press that can handle most reloading chores with ease. And now you can get a genuine Rock Chucker Supreme for $126.99 — a very good deal. The Rock Chucker offers plenty of leverage for case-sizing and the “O” is tall enough for long cartridges. The Rock Chucker has a very strong base and should last a lifetime. We’re not fans of the Rock Chucker’s priming system but most serious reloaders use a separate priming tool.
8. RCBS — Buy Green, Get Green Rebate
RCBS is running a very attractive Rebate Program currently. If you spend $300.00 on qualifying products you get a $75.00 rebate. Spend $50 and get a $10.00 Rebate. This program is limited to one (1) rebate redemption per calendar year, with a maximum of $75.00. CLICK HERE for more information. NOTE: To qualify, you must supply completed RCBS rebate coupon, original UPC barcodes from package, and original cash register receipt and/or dated, itemized sales invoice.
Need quality .22 LR rimfire ammo at an affordable price? Consider Norma. Most folks think Norma only produces centerfire ammo and cartridge brass. As a result, people haven’t been looking for Norma rimfire ammo. Their loss is your gain. Accurate, reliable Norma .22 LR ammunition is in-stock right now at leading online vendors. This is good quality ammo, made in Europe. Bullets.com has Norma Tac-22 ammo in stock at $5.25 per 50-rd box (SKU: BL7819). In addition, Bullets.com offers Norma Match-22 ammunition at $7.50 per 50-rd box (SKU: BL11887).
Many visitors to the site ask us, “I’ve got a .223 and .308. What will a 6mmBR Norma (6BR) give me that I’m not getting already?” Well first you will probably average consistently smaller groups than your current .223 or .308 rifle (assuming the 6BR has a quality barrel and trigger). A good .308 Winchester can be superbly accurate, no question about that, but the lesser recoil of the 6BR works in the shooter’s favor over a long string of fire. Even with a Rem 700 or Savage action factory action, a 6BR with a benchrest stock, premium barrel, and a high-quality chambering job should deliver 5-shot groups in the high twos to mid-threes, provided you do your job. We have one 6BR rifle that shoots Lapua factory-loaded 6BR ammunition in the low twos and high ones. That’s exceptional, we admit, but it still shows how the 6BR is an inherently accurate cartridge, even with factory loads.
Compared to a .223, the 6BR offers a much better selection of high-BC projectiles, and will deliver considerably more power on the target. Compared to the .308 shooting 168gr MatchKings, a 6BR shooting 105-107gr bullets offers better ballistics all the way out to 1000 yards. Plus, for most people, the 6BR is just easier to shoot than a .308. Recoil is less than half of the .308 cartridge. Both the .308 and 6BR chamberings offer good barrel life, but the 6BR uses 15-18 grains less powder, saving you money. On the other hand the .308 is the designated cartridge for F-TR and Palma shooting, so it may be a more versatile chambering for Long-Range competition. So which would we choose between the 6BR and the .308? Actually we think you should have both. The 6BR is my favorite cartridge out to 500 yards, and I like the .308 Win for F-TR. And… if you want to shoot at the World Fullbore Championships this week at Camp Perry there’s only one choice — a .308 Win.
Ever wondered what caused a particular bulge or marking on a case? And more importantly, does the issue make the case unsafe for further use? Sierra Bullets Ballistic Technician Duane Siercks offers some insight into various issues and their causes in this article from the Sierra Blog.
Diagnosing Problems with Cartridge Brass
by Duane Siercks, Sierra Bullets
I was handed a small sample of .223 Rem cases the other day and was asked if I could comment on some marks and appearances that had been noticed as they were sorting through the cases. I will share what was observed and give you what would seem to be a cause for them. These were from an unknown source, so I have no way of knowing what type of firearm they were fired in or if they were factory loaded or reloaded ammunition.
Example ONE: Lake City 5.56, Unknown Year
Case #1 was seen to have a very rounded shoulder and split. Upon first look it was obvious that this round had been a victim of excess pressure. The firearm (perhaps an AR?) was apparently not in full battery, or there was possibly a headspace issue also. While taking a closer look, the primer was very flat and the outside radius of the primer cup had been lost. High pressure! Then I also noticed that there was an ejector mark on the case rim. This is most certainly an incident of excessive pressure. This case is ruined and should be discarded. See photo below.
Example TWO: Lake City Match 1993
Case #2 appears very normal. There was some question about marks seen on the primer. The primer is not overly flattened and is typical for a safe maximum load. There is a small amount of cratering seen here. This can be caused by a couple of situations.
Cratering is often referred to as a sign of excess pressure. With safety in mind, this is probably something that should make one stop and really assess the situation. Being as there are no other signs of pressure seen with this case, I doubt that pressure was unsafe. That leads us to the next possibility. This can also be caused by the firing-pin hole in the bolt-face being a bit larger than the firing-pin, and allowing the primer to flow back into the firing-pin hole causing the crater seen here. This can happen even with less-than-max pressures, in fact it has been noted even at starting loads. Always question whether pressure is involved when you see a crater. In this situation, I lean toward a large firing-pin hole. This case should be safe to reload.
Example THREE: R-P .223 Remington
Case #3 appears normal with one exception. There are two rings seen about one half inch below the base of the shoulder. These rings are around the circumference of the case, one being quite pronounced, and the other being noticeably less.
As we do not know the origin of the firearm in which this case was fired, it does seem apparent that the chamber of the firearm possibly had a slight defect. It could have been that the reamer was damaged during the cutting of this chamber. I would suggest that the chamber did have a couple of grooves that imprinted onto the case upon firing. This firearm, while maybe not dangerous should be looked at by a competent gunsmith. In all likelihood, this case is still safe to use.
Example FOUR: R-P .223 Remington
Case #4 has no signs of excess pressure. There is a bulge in the case just ahead of the case head that some might be alarmed by. This bulge is more than likely caused by this case being fired in a firearm that had a chamber on the maximum side of S.A.A.M.I. specifications. There is actually no real issue with the case. Note that the primer would indicate this load was relatively mild on pressure.
If this case was reloaded and used in the same firearm numerous times there might be a concern about case head separation. If you were going to use this case to load in an AR, be sure to completely full-length re-size to avoid chambering difficulties. This case would be safe to reload.
It is very important to observe and inspect your cases before each reloading. After awhile it becomes second nature to notice the little things. Never get complacent as you become more familiar with the reloading process. If ever in doubt, call Sierra’s Techs at 1-800-223-8799.
Many of our readers have never had a chance to shoot much past 600 yards. How far away does a 1000-yard+ target really seem to the naked eye? Well this short video answers that question. Gorilla Ammo, the video’s producers, used a camera-carrying aerial drone to fly downrange from the firing line all the way out to 1122 yards (and back again). Watch the drone footage at 0:00-0:07 and especially 0:48-1:03. The “bird’s-eye view” really gives you a sense of the distance. The “fly-back” at 0:48-1:03 time-mark is what makes this video worth watching.
The video features prone shooting at steel targets placed at 750 and 1122 yards. We do apologize for the lame, “oh so serious” voice-over which attempts to make this rather ordinary range session seem like some kind of life-changing experience. (Frankly, you may just want to turn the sound off — it’s that annoying.) It’s really not that big a deal to hit steel at 750 yards with a quality AR-15, chambered in .223 Rem, shooting Sierra 77 grain MatchKings.
Hitting Steel at 1122 Yards with 2540 FPS Ammo Can Be Challenging
The 1122-yard hits are a bit more impressive. Gorilla Ammo lists a relatively sedate 2540 fps Muzzle Velocity for its .223 Rem 77gr SMK ammunition. According to JBM Ballistics, at 1125 yards, that 2540 fps load has 68.3 MOA of drop from a 100-yard zero (firing at sea level and 80° F ambient). Morever the bullet goes trans-sonic around 750 yards (losing stability) and is traveling just 933 fps at impact. And the wind’s the killer — at 1125 yards, with this bullet/load, a mere 2 mph, full-value wind change can move the Point of Impact over three feet!
Here is a great deal on a great little rifle. Right now at Cabela’s you can get the Howa 1500 Mini-Action in .223 Rem for just $314.99 with Coupon Code 16STALKUP. The rifle (with black synthetic stock) is already on sale, marked down to $349.99. That discount code gives you another 10% off. That’s a bargain — other vendors are charging $515.00 or more for this rifle. We actually “walked through” the online ordering process ourselves to confirm that the discount code works (see below). Note, you order online, but the rifles must be picked up in a Cabela’s store.
The Howa 1500 Mini Action is nearly an inch shorter than a Rem 700 short action, making for a nice, compact carry-around varminter (OAL length is just 41.5″). Your Editor checked out the Howa Mini Action Rifle at SHOT Show. The bolt opens and closes VERY smoothly (way better than most mass-produced bolt guns). The two-stage HACT trigger is excellent — it’s plenty light, with a crisp release and no annoying spring-loaded blade in the middle. I like it MUCH better than standard Remington, Ruger, or Savage triggers.
The standard Howa Mini Action rifle weighs 6 pounds without scope. This particular model comes with a 22″ barrel, black synthetic stock, and 10-round detachable box magazine. The Howa Mini on sale at Cabelas.com is a .223 Remington, but other chamberings are available at a higher price if you shop around. Howa offers Mini Action rifles in .204 Ruger, .222 Rem, .223 Rem, 6.5 Grendel, and 7.62x39mm.
Congratulations to the USAMU’s Tyler Payne (right) for the exhibition on how to shoot this and a very commanding overall win. [Payne won overall and high military with a score that was 25% higher than the next-best finisher.] Also congrats to Rhett Walters and Terry Cross for their first-place and second-place finishes in Tac Lite (and 2nd/3rd overall). I was fortunate to place third in Tac Lite and 4th overall for the match. Thank you to FALKOR Defense for the prize table contribution.
We admire the fortitude of Forum Member Nick who braved wintry December weather to enjoy a day at the range in his native Pennsylvania. A little snow on the ground couldn’t stop this intrepid shooter, who brought snow shovel and arctic gear to his range session. Folks, here’s a true “hardcore” fan of shooting! Despite the “relentless snow”, Nick reports that “at least it wasn’t windy”. Nick shot a variety of long guns, including his .22LR rimfires, a .223 Rem, and a .308. Not daunted by the cold, Rick said it was fun to “play like a kid once in a while.” That’s the spirit!
Many visitors to the site ask us, “I’ve got a .223 and .308. What will a 6mmBR Norma (6BR) give me that I’m not getting already?” Well first you will probably average consistently smaller groups than your current .223 or .308 rifle (assuming the 6BR has a quality barrel and trigger). A good .308 Winchester can be superbly accurate, no question about that, but the lesser recoil of the 6BR works in the shooter’s favor over a long string of fire. Even with a Rem 700 or Savage action factory action, a 6BR with a benchrest stock, premium barrel, and a high-quality chambering job should deliver 5-shot groups in the high twos to mid-threes, provided you do your job. We have one 6BR rifle that shoots Lapua factory-loaded 6BR ammunition in the low twos and high ones. That’s exceptional, we admit, but it still shows how the 6BR is an inherently accurate cartridge, even with factory loads.
