Commentary by Mark Walker, Sierra Bullets Product Development Manager This story originally appeared in the Sierra Bullets Blog. Visit SierraBullets.com.
Some people love tuners and others hate them. I use them on my rifles and I’ve had more than one person ask me why on earth I would put one of those things on my barrel. I’ve even had a national long range champion tell me to unscrew it and throw it into Lake Erie on my next trip to the pits at Camp Perry. However, there are other shooters that swear by them and have many match wins to back it up.
It’s an indisputable fact that tuners do have an effect on a rifle’s accuracy, however how much is somewhat open for debate. The large heavy target barrels that we use for benchrest or f-class may not be affected as much by a tuner as a lighter weight sporter type barrel. Each barrel that I’ve installed a tuner on not only showed improvement in accuracy but also displayed a wider load window. The increased accuracy is because of the ability to adjust the tuner to the load, however I believe the wider load window is due to the added weight of the tuner slowing down the barrel vibrations. These are both very important aspects of having a very accurate rifle.
While better accuracy and a wider load window are two areas of improvement, I believe the most important feature of a tuner is the ability to adjust the tune during the middle of a match. This is especially important during matches where you must load all your ammo earlier and cannot make adjustments to the load during the match. If you happen to miss the load, instead of having to deal with a gun that isn’t shooting you can make an adjustment to the tuner and hopefully improve the accuracy of the rifle.
While I’ve laid out several ways that a tuner can help, there are also a few ways that tuners can cause problems. They add weight so if you are shooting a discipline that has weight limits on the rifle, you may not be able to install a tuner and still make weight. Sometimes, a barrel just doesn’t show improvement with a tuner installed. These are few and far between, but it is something to consider. If you make an adjustment to the tuner in a match, you need to make sure you move it in the right direction. Adjusting a tuner in the wrong direction can cause very large groups. And finally, if they aren’t tightened properly, tuners can come loose during firing which will cause a lot of problems as well.
As you can see, tuners have both positive and negative aspects. In my personal experience, the positives far outweigh the negatives so I will continue to use them on all of my competitive rifles. If you’ve been thinking about installing a tuner, hopefully some of the information that I’ve presented will help you make an informed decision.
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When you look at a loading manual with load data, you will usually see pressure ratings for stated load. Sometimes these are listed in PSI numbers, which most people correctly understand to be Pounds per Square Inch of pressure. However, powder-makers also commonly list pressure in CUP numbers. CUP stands for Copper Unit of Pressure. You may be asking — “What exactly is a CUP, and what is the origin of that unit of measurement?” You may also be wondering — “What’s the difference between CUP pressures and PSI pressures?” On Hodgdon’s Facebook Page, you’ll find answers to these questions.
Q: What is CUP?
A: Copper Unit of Pressure (CUP) is a measurement used in the ammunition industry to determine the chamber pressure created by a cartridge load. Originally, a precisely formed copper slug was placed in a fixture over the chamber. When the cartridge was fired, the amount of crushing measured on the slug allowed engineers to determine the pressure.
These days, modern electronic transducers provide faster, more accurate measurements of chamber pressures in pounds per square inch (PSI). CUP and PSI are measured to different scales and are NOT interchangeable.
Hodgdon Reloading Data Center Sample
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Hearing loss can be progressive and irreversible. If you are a shooter, this is serious business. You need to use effective hearing protection every time you go to the range. Even if you are away from the firing line, gunshot noises can damage your hearing. Good foam earplugs costs mere pennies but they can prevent deafness in your later years. Many folks also wear muffs over plugs. Some other shooters prefer the custom-molded ear plugs. Electronic muffs can be useful when you are away from the firing line because they allow you to converse.
Here are some comments from Forum members on the subjects of hearing loss and the need for proper ear protection. You can join the discussion in this FORUM THREAD:
“If you are young and don’t want to end up with profound hearing loss like I have… ALWAYS ALWAYS ALWAYS use hearing protection. This is from a guy who is social security/medicare eligible, has two Re-Sound aids at a not so cheap $2000.00 EACH… and now has religion! When I was young [we] never wore ear gear and laughed at the ringing after 100 rounds of 12 gauge at the skeet range. Now we live with the consequences. Be smarter than I was!” — Gary0529
“Take it from a 70-year-old that has been shooting 49 years. I now have a Re-Sound hearing aid in the left ear and a Cochlear Implant in my right. I still cannot hear. Custom molded plugs are best. Some are sold at gun shows and some are made by the folks that make hearing aids. They are cheap as compared to this $200,000 implant. DO IT NOW for everyone around guns.” — Richard King, King’s Armory
“Say WHAT? You have to type a little louder! I used to shoot without any muffs, when I was ‘young and indestructible’, and now I have about 40% loss. When I take youngsters and friends shooting, they get muffs and plugs. I’m not allowed suppressors where I live. I would use them if I could.” — Josh B.
“For what it’s worth, I wear both ear plugs and muffs that have NO sound adjustment capability. As a youngster (15) I wore no ear protection either in shooting or motorcycle riding. I kept doing that until entering military service at age 18 where we had to wear ear plugs at the range. Started wearing ear plugs after that, except when motorcycle riding. At around age 53 my hearing started going south as a result of my own stupidity as a youngster and now some 15 years later I only have about 45% of my hearing left. So beware all — there is a price to pay if you don’t protect your hearing.” — Shynloco
“Here are several points to consider:
1. The NRR (noise reduction rating) is determined by “experimenter” fit, not user fit, and trained listeners during the testing period. This results in inflated protection numbers compared to real-world protection.
2. Any disruptions in the protector/skin seal will greatly reduce the effectiveness. Think eye glass temple bars, lots of hair, ear wax, etc. A 5% leak results in a 50% reduction in effectiveness.
3. Double protection gives only 5-10 dB extra protection.
4. Bone conduction gives about 50 dB protection so hearing protectors are the weak link[.]
5. Keep the protectors in/on your ears. Over 8 hours, if you remove them for only 30 minutes (cumulative), the effective protection is cut in half.
So, if you are using a really good muff with NRR of 33 and a foam plug with NRR of 27, the real-world NRR would be about 35 dB, at best. This would attenuate a gunshot by that amount. The key is time versus exposure. Limit the exposure and you limit the dose.” — DelS
“Personally, I use Etymotic Research GSB-15 electronic blast protectors. They are rated at 26-28 dB, but inserted correctly, with the correct fitting tip, approach 38 dB. And, they have a compressor amplifier that allows you to hear soft sounds normally and with very high fidelity. As the sound level goes up, the gain goes down till at an ambient sound pressure level of around 90 dB SPL, the gain is unity, or what comes in goes to the ear canal. However, once the sound level gets to 117dB SPL, the amplifier cannot go higher. So, if you are firing a large rifle with an impulse noise of around 160 dB SPL, your ear only hears 117 dB SPL of that for an effective attenuation of about 40 dB. RIGHT! about the same as the mastoid bone! Can’t get any better than that.
What gives me the right to say all these things? First, a BSEE as well as the graduate course in Audiology and a hearing aid dispensers license. And working in research and product development for the ear the last decade of my career.” — Norm Matzen
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Manners Composite Stocks produces some of the best tactical, hunting, and competition stocks you can buy. Learn more about Tom Manners’s company in an insightful Factory Tour Story in LongRangeHunting.com. Author David Fortier recently visited Kansas City, Missouri to tour the Manners Composite Stocks factory. There, Fortier found an impressive facility, with 37 employees producing stocks under the guidance of founder Tom Manners.
The history of Manners Composite Stocks is a classic American success story of dedication and hard work. Tom Manners, a competitive long-range shooter, started producing stocks at home as a hobby. Demand for stocks rose and Tom had to finance expansion. To do that, Manners sold his beloved 427 Cobra replica to purchase a mill and compressor, and pay shop rent for a year. After that initial sacrifice, business has boomed. Tom’s dedication has been rewarded. Fortier reports:
Since he expanded from working at his home, [Tom’s] business has grown by 30 to 40 percent every year. Within five years he had outgrown the shop and secured a larger facility. Business growth has continued, and when I met with him he had just added another 4,000-square-foot building. Today he has 37 employees and runs two shifts trying to keep up with orders. Over the years, his offerings have steadily grown. Some of his biggest supporters have always been George Gardner (G.A. Precision) and Marty Bordsen (Badger Ordnance). They combined and created one of his first tactical stocks, the MCS-GAT. This stock became his first piece to be torture tested. To see just how rugged it was, he took it and put it on the arms of a chair and stood on it (USMC stock test) to try to break it. The stock shrugged off the abuse, so he used it to hit softballs, without issues. He then drove over it with a truck. When this failed to harm it, he put angle iron under each end and parked the truck on it. Despite all the abuse, it never failed and therefore the MCS-GAT caught people’s attention.”
Here’s an example of world-class benchrest shooting. Charles Huckeba of Texas was the top individual shooter at the 2013 World Benchrest Championships (WBC) held near Sydney Australia in October 2013. In this video, 2013 WBC Two-Gun Overall winner Charles shoots a 1/8th MOA group at 200 yards — “a little bitty dot” as a fellow Team USA shooter observes. That’s impressive. If you can describe Huckeba’s style in a nutshell it would be “smooth, consistent, and rapid but not hurried”.
Charles also employed some unusual hardware. In the video, take a close look at the joystick on the Farley Coaxial front rest. There’s no knob at the end. In its place is a small, wood ammo caddy. Charles removed the standard knob from the handle of his Farley rest and replaced it with a home-made wood block that holds cartridges for the record target. The 10.5-lb Light Varmint rifle is chambered in 6PPC with a BAT Machine Action and a composite wood and carbon-fiber stock.
Watch Charles Huckeba Shoot 1/8 MOA, 200-yard group at World Benchrest Championships
Here is the actual 200-yard, 5-shot group Charles shot in the video. Photo (by Stuart Elliot) taken through the lens of Huckeba’s 50X March scope (reticle has 1/16th MOA Dot).
Analyzing the Fine Points — What Makes Huckeba So Good
Short-range benchrest shooter Boyd Allen saw some interesting things in Huckeba’s WBC performance, as captured on video. Boyd noticed Huckeba’s smooth gun-handling and efficient loading. But Boyd also spied some interesting equipment, including an innovative joystick “handle-caddy”.
1. Low Friction Bags — When Huckeba slid his rifle, there was very little apparent friction. The front bag features the new 3M material (ScotchLite) on the sliding surfaces. The rear Protektor bag has ears of the same low-friction material.
2. Pause Before Chambering — While he was watching the flags and deciding when to start firing, Charles kept his first round in the action, but out of the barrel’s chamber, probably so as not to heat the cartridge and change the round’s point of impact.
3. Ammo Caddy on Joystick Arm – Charles shoots a Right Bolt/Left Port action, so he pulls his rounds with his left hand. Note that Huckeba’s record rounds rest in a small, wood ammo caddy attached to the end of the joystick shaft. Look carefully, you’ll see the wood ammo block in place of the normal black ball at the end of the joystick. That allows Charles to pull shots with the absolute minimum of hand movement. Ingenious! Huckeba is very fast, with a great economy of motion. I believe that because his ammo was literally at hand, Charles was better able to keep his focus on aiming and the flags.
4. Smooth-Cycling BAT Action — Note how smoothly Huckeba’s action operates. When Charles lifts the bolt handle (to extract a round and cock the firing pin), this does not disturb the rifle. Likewise, as he closes the bolt, the gun doesn’t wobble. The smooth action allows Charles to hold point of aim even when shooting relatively quickly. Huckeba’s BAT action is chrome-moly steel. Some shooters believe this metal makes for a smoother action than stainless steel or aluminum.
5. Long-Wheelbase Stock — The wood and carbon fiber stock is light, long, and stiff. Yet, importantly, the stock is also well-damped. The longer-than-average stock length (with extended forearm) seems to help the gun track well without jumping or rocking. The longer forearm allows a longer “wheelbase”, effectively shifting the weight distribution rearward (less weight on the front, more weight on the rear). This places a greater share of the gun’s weight on the rear bag, as compared to a more conventional benchrest stock. Huckeba’s stock, built by Bob Scoville, is at the cutting edge of short-range benchrest design. Its light-weight balsa wood and carbon fiber construction provides a combination of stiffness and vibration damping that allows its relatively long fore-end to be fully utilized to increase the weight on the rear bag (always an issue with 10.5-pound rifles).
To learn more about this benchrest stock design, read the comments by stock-builder Bob Scoville in our PPC with Pedigree story in our Gun of the Week Archives. Bob observed:
“There is a lot more to the structure of the stocks than meets the eye. The carbon fiber skin with which I cover the stocks creates a light, tough exterior surface. However, this contributes very little to the overall performance of the stocks. The real strength and stiffness is the result of an internal beam utilizing balsa core/carbon fiber technology.
This type construction can be found in aircraft, race cars, powerboats, and sailboats. It is interesting to note, balsa has the highest strength to weight ratio of all woods and carbon fiber is one of the lowest stretch (modulus of elasticity) relative to weight of all materials. The marriage of these two materials is common in the high-performance world. Additionally, balsa is used commercially for vibration dampening and sound reduction.”
Video find by Boyd Allen. Video by Stuart Elliot of BRT Shooters Supply, Brisbane, Australia.
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Here’s a smart, versatile new product — a large-size rifle case that does double-duty as a shooting mat. Uncle Mike’s Long Range Tactical Bag quickly and easily converts to a 78″ shooting mat. Measuring 50″ in length, with a 15″-tall main compartment, this bag is big enough to handle most tactical and F-TR rifles with optics and Harris-type bipods attached. A 30″ flip-out forward section includes a front load strap that allows shooters to pre-load the bipod legs while shooting prone.
The Long Range Shooting bag has four self-adjusting magazine pockets, which will hold magazine sizes from .223/5.56mm to .308/7.62mm. Conveniently, this new 50″-long soft case will fit inside the popular Pelican model 1750 hard case (for those situations where you need greater protection).
Fits Long-Range and Tactical rifles up to 49″ in length
Fold out front section has bi-pod front load strap
Four self-adjusting magazine pockets
Fits inside a Pelican 1750 hard case
Tough 1000D nylon with waterproof backing
Opens up into 30″ x 78″ shooting mat
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This evening (Wednesday, April 15th), Shooting USA television spotlights the National Matches and CMP events at Camp Perry, Ohio. This is a “must-watch” episode for anyone interested in High Power shooting. The National Matches at Camp Perry are the World Series of American shooting sports, attracting the nation’s top pistol and rifle marksmen. There are individual competitions, such as the Vintage Sniper Match, or the M1 Garand Match featuring legendary firearms. Then there’s the National Trophy Infantry Team Match, known as the Rattle Battle among competitors, simulating an assault by an Infantry Squad. Catch this episode of Shooting USA on the Outdoor Channel. Vintage military rifle fans take note — this week’s show also features an American classic, the m1903 Springfield.
Eastern Time – 3:30 PM, 9:00 PM, 12:30 AM (Thursday)
Central Time – 2:00 PM, 8:00 PM, 11:30 PM
Mountain Time – 1:30 PM, 7:00 PM, 10:00 PM
Pacific Time – 12:00 Noon, 6:00 PM, 9:30 PM
The 1903 Springfield on Tonight’s Show
The U.S. Rifle, Model of 1903, better known as the 03 Springfield, continues to attract praise today. While its design was initially borrowed, its accuracy, quality and service record proved to be a fine military bolt-action rifle in the trenches of WW I and on into World War II. “It was a beautifully made gun, extremely, extremely well balanced,” says Firearms Historian Garry James.
History of the National Matches and Camp Perry
In 1903, President Theodore Roosevelt’s vision of skilled marksmen among American citizens came to life as the National Matches; civilians on the firing line with the service weapon of the day, preparing for training in case of a time of war. T.R.’s vision is now a tradition, attracting thousands of people for five weeks of shooting competitions each year at Camp Perry in Ohio.
The National Matches have been held at Camp Perry since 1907. The range is located along the shores of Lake Erie in northern Ohio near Port Clinton. The site was first acquired in 1906, in response to the need for a larger facility for military training and the NRA’s shooting programs. In 1906 Gen. Ammon B. Crichfield, Adjutant General of Ohio, ordered construction of a new shooting facility on the shores of Lake Erie, 45 miles east of Toledo, Ohio. The original land for Camp Perry was purchased in 1906, and the reservation was named after Commodore Oliver Hazard Perry, the American naval commander who won the Battle of Put-in-Bay during the War of 1812.
On August 19, 1907, Cpl. L. B. Jarrett fired the first shot at the new Camp Perry Training Site. And that year, 1907, Camp Perry held its first National Pistol and Rifle Championship events. This location has hosted the annual NRA National Matches ever since. Today, over 4,000 competitors attend the National Matches each year, making it the most popular shooting competition in the western hemisphere.
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Here’s a great video from German ammo-maker GECO (part of the Swiss RUAG group of companies). Employing advanced 3D rendering and computer graphics, this animation unveils the inside of a pistol cartridge, showing jacket, lead core, case, powder and primer. Next the video shows an X-ray view of ammo being loaded in a handgun, feeding from a magazine.
Then it really gets interesting. At 1:32 – 1:50 you’ll see the firing pin strike the primer cup, the primer’s hot jet streaming through the flash-hole, and the powder igniting. Finally you can see the bullet as it moves down the barrel and spins its way to a target. This is a very nicely-produced video. If you’ve ever wondered what happens inside a cartridge when you pull the trigger, this video shows all. They say “a picture’s worth a thousand words”… well a 3D video is even better.
For Best Viewing, Click Gear Symbol and Select HD Playback Mode
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Allan D. Cors of Naples, Florida was elected by the National Rifle Association Board of Directors as President of the 144-year-old Association. The election took place in Nashville, Tennessee following the 144th Annual Meeting of the NRA. A lifelong hunter and competitive shooter with a passion for collecting World War II military vehicles, Cors has served as president of the NRA Foundation and is a member of the NRA’s Executive Committee. He was a principal advocate for the establishment of the NRA’s Political Action Committee. Cors served as a counsel with the Judiciary Committee in the U.S. House of Representatives. He also served as the director of government affairs and senior vice president at Corning for 34 years.
“I am humbled by the support of my fellow 5 million-plus NRA members and 75 board members. At a time when our country is disillusioned with government and its leaders, the public’s faith in the NRA has never been stronger,” said Cors. “This trust is a result of the NRA’s steadfast loyalty to upholding the Second Amendment and it is a testament to the diligence and prescience of Wayne LaPierre – a man who has dedicated his life to the NRA.”
Wayne LaPierre Retains Executive VP Post
The board of directors also re-elected Wayne LaPierre as NRA’s executive vice president. LaPierre has served in this leadership role since 1991 and has spearheaded NRA’s efforts to restore the relevance and sanctity of the Second Amendment. Upon his re-election, LaPierre reappointed Kyle Weaver to the position of executive director of NRA General Operations and Chris W. Cox to the position of executive director of NRA Institute for Legislative Action.
Pete Brownell Elected First VP, and Richard Childress Elected Second VP
Pete Brownell was elected NRA First Vice President. Brownell, who previously served as NRA Second VP, is also the current chairman of the National Association of Sporting Goods Wholesalers (NASGW), an active member of the U.S. Army’s Command and General Staff Foundation Board, and vice chair of the Iowa Economic Development Authority Board. NASCAR legend Richard Childress of North Carolina was elected NRA Second Vice President, filling the spot formerly held by Pete Brownell.
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Report by John Morgan-Hosey
Civilian Service Rifle (CSR) is a shooting sport in the United Kingdom shot with bolt action rifles and ‘Straight-Pull’ derivatives of semi-auto centerfire rifles. Why do the UK shooters use manual-operating versions of popular self-loaders? Well, that’s because of legal restrictions. Civilian ownership of semi-auto centerfire rifles was banned in the United Kingdom in 1987.
Give credit to the ingenuity of competitive shooters in the UK. The ban on semi-autos has not stopped shooters from adapting modern rifles such as the AR15. In fact, CSR is the UK NRA’s fastest growing shooting discipline. There are four classes for competitors:
1. Historic Class — Vintage Rifles, mostly Lee Enfields with iron sights.
2. Iron Sights Class — all non-Historic Rifles with Iron (open) sights.
3. Practical Optic Class — Rifles with bipods (and scopes 4.5X or greater magnification).
4. Service Optic Class — Rifles without bipods (and scopes with no more than 4.5X power).
Surprisingly, shooters in the Service Optic Class dominate these matches. So you don’t need a high-magnification scope or a bipod to do well. The most popular rifles are modified AR-platform rifles. These are set-up in the UK with no gas system to ensure they comply with our laws. Side-charger cocking handles are fitted to allow the rifles to be operated easily while in the shooting position. You can see in the photo above a modified AR with the Union Jack on the buttstock. Notice the bolt handle on the right. This opens and closes the bolt.
This video clip shows the side-charging ARs in use.
Note the side bolt handle that cycles the action on this non-semi-auto AR.
Here shooters advance 100 yards to engage the targets at the next firing line.
Dave Wylde Sets Impressive Record at the Civilian Service Rifle League Match.
The last matches in the 2014/15 CSR League took place on Sunday, 5 April. With final places in all four classes up for grabs, the fine weather and light winds made for some impressive scores, none more so than Dave Wylde in Service Optic Division. Dave scored a mighty impressive 246 (of a possible 250) in the PM Match. Breaking 235 is tough enough and scoring over 240 a rarity with the match includes standing snap shooting at 100 yards, a sitting rapid at 200 yards, and prone snap shooting at 300 yards with and two run downs to raise the shooters heart rate.
The most popular class, Service Optic, had Peter Cottrell retaining the trophy for the fourth consecutive year with a score of 993. Adam Chapman pushed him hard all season to finish a close second on 987 points, with Bill Ellis, one of the most consistent CSR shooters, third with 972.
Civilian Service Rifle Grows in Popularity
As CSR continues to grow in popularity, the sale of ‘Straight-Pull’ AR-platform rifles is increasing year after year. Accordingly, the United Kingdom NRA is allocation more range space at the Bisley National Shooting Centre to accomodate the increasing number of competitors.
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On April 9, 2015, the California Fish and Game Commission (CFGC) adopted regulations to ban the use of traditional lead-component ammunition for all hunting in the state by July 1, 2019. The Daily Caller reports: “In a unanimous vote, the Commission opted to phase out lead bullets, which hunters’ groups are calling a de-facto ban on hunting in the state.” The new regulations will be implemented in multiple phases, starting with the 2015 hunting season. These tough new regulations were issued pursuant to legislation passed in 2013 by the California legislature and signed by Gov. Jerry Brown.
The National Shooting Sports Foundation is worried that California-style ammo bans will be adopted in other states. To some observers, California’s ban on lead-based ammunition was designed more to reduce gun sales and halt hunting than it was ever intended to help the environment. The NSSF has shown that the elimination of traditional lead ammo will do little, if anything to improve the environment in any meaningful way. What such bans WILL do is raise the cost of ammo and make it more difficult to hunt. The NSSF explains: “Anti-hunting groups use the supposed harm caused by traditional ammunition as a wedge issue to further their ultimate political agenda of banning hunting across the country.” The NSSF has provided the real facts via an infographic and the YouTube video embedded below.
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Sporter Chronograph Kit includes: Bayonet Sensor, 3.5 foot Data Cable, Remote Display (with Battery), Strap with thumb nut, Two V-block spacers, and compact storage box.
Magnetospeed has just introduced a new bayonet-style chronograph that is less than half the price of previous MagnetoSpeed models. This is big news for shooters who always wanted a MagnetoSpeed but found the $399.00 cost (for V3 model) too pricey. The new Sporter Chronograph will cost just $189.00. It offers most of the features of the more expensive models (see chart below for details) and has a updated sensor. The MagnetoSpeed Sporter chronograph kit was designed to be used on barrels from 1/2 inch up to 1 inch in diameter. In can also accommodate muzzle brakes and flash hiders up to 2.7 inches in length. MagnetoSpeed says its new Sporter is “Ideal for contoured rifle barrels (sporter barrels) and long-barreled revolvers.”
See $189.00 Sporter Chronograph Features Reviewed in Video
MagnetoSpeed Sporter features
Simple, one-button cycling display (shows recent shot velocity and statistics).
Three sensitivity settings for fine-tuning.
Easy access battery compartment, with 9V Battery included.
Integral, quick-attachment system, with metal buckle, nylon strap, screw-in tensioner, and dual V-block spacers (thick and thin).
Bayonet works with Muzzle Brakes and Flash-hiders up to 2.7″ long.
Q: Will the Sporter Chrono work with thicker barrel (i.e. greater than 1″ diameter)?
A: The manufacturer recommends the $399.00 V3 model for thicker barrels. But, wink-wink, if you have a 1.25″ barrel you can get this to work, based on what we’ve seen. If you need to go really fat (up to 2.0″ diameter), get the V3. Magnetospeed also says the V3 is needed for airguns, shotguns, and muzzleloaders.
Click Image for Full-Screen Photo
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