You’d like to protect your hearing, and maybe you’re a little curious about how your rifle might shoot suppressed. So you’re thinking of buying a suppressor (aka “can”, “moderator”, “silencer”). You can’t just get one off the shelf at Walmart. Acquiring a suppressor requires filling out paperwork and paying a Federal $200 Tax Stamp. Plus there is typically a pretty long wait. However, the good news is that suppressor ownership is now legal in 42 of the 50 American states — that’s 84%! For most American adults, getting a suppressor is legal, provided pass the required background checks.
States Where Suppressor Ownership is Allowed
Currently, the following 42 states allow private ownership of suppressors: AL, AK, AZ, AR, CO, CT, FL, GA, ID, IN, IA, KS, KY, LA, ME, MD, MI, MN, MS, MO, MT, NE, NV, NH, NM, NC, ND, OH, OK, OR, PA, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY.
Note: Even if you live in one of the states listed, you should still verify that owning a suppressor is legal in your area. Some states may have municipal- or county-based restrictions.
States Where Suppressor Ownership is Prohibited
Unfortunately, there are still eight (8) States that forbid private ownership of suppressors. The eight No-Go States are: California, Delaware, Hawaii, Illinois, Massachusetts, New Jersey, New York, Rhode Island. In these eight states, private ownership of suppressors (aka “silencers”) is forbidden. Hopefully that a few of those eight hold-out states will change their laws in the months ahead.
Looking Inside a Suppressor in Action
Popular YouTube Channel Smarter Every Day recently released a cool video featuring rifle suppressors with see-through acrylic sleeves. The team filmed shots through the suppressors using ultra-high-speed (110,000 frame per second) cameras. When played back in super-slow-motion, you can see the flame propagate through the suppressor and the bullet move through each baffle before it exists the muzzle. Watch the results in the video below — it’s mesmerizing:
See Through Suppressor in Super Slow Motion (110,000 fps) — Click Arrow to Watch:
Suppressors, On Average, Reduce Noise Levels about 30 Decibels
In an article for Ammoland, gunwriter Sam Hoober says that you can expect about 30 decibels (dB) of noise reduction from the average suppressor: “Looking at a few different products, SilencerCo attests their suppressors reduce the sound pressure of a 9mm gunshot to anywhere from 125.7 dB to 131.5 dB, depending on the model. Advanced Armament Co, another popular supplier, attests a 23 dB to 33 dB reduction or down to 127 dB. Liberty Suppressors, another manufacturer, attests a reduction of 24 dB to 38 dB, depending on model and other factors. In short, we can presume something on the order of 30 dB of attenuation as an average.”
Using that 30 dB number you can quickly discern that you’ll still need hearing protection — good hearing protection — when shooting any suppressed firearm (even a .22 LR). “Spikes of 130 dB and more can result in permanent hearing damage instantly”. Source: NRA Blog.
Story idea by Boyd Allen. We welcome reader submissions.
Last month, the National Shooting Sports Foundation (NSSF) hosted a suppressor demonstration at Elite Shooting Sports in Manassas, Virginia. Sig Sauer and Daniel Defense suppressor experts were presenters. Olin Corporation supplied ammunition.
The Daniel Defense representative noted that suppressors do not render a firearm silent (despite what Hollywood movies might show). The sound level of an un-suppressed AR15 firing is 165-175 dB. With a suppressor in place, the sound level for the same 5.56 rifle drops to around 135-140 dB. That is a significant noise reduction, but the rifle is still producing a noise louder than a jack-hammer (and hearing protection is still recommended). Watch the video below to learn other important facts about firearm suppressors.
NSSF Hosts Suppressor Demonstration for News Media
The objective of the NSSF demo was to give the news media more accurate information about hearing protection devices. In addition, the NSSF wanted to correct many popular misconceptions about suppressors. Mainstream media reports about sound suppressors are typically inaccurate, incomplete, and misinformed. For example, most media stories fail to acknowledge that suppressors are legal throughout Europe, and widely used by European hunters and target shooters. If you were to believe the typical news report on suppressors, silencers are evil and dangerous. The NSSF demo was designed to replace ignorance with facts.
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.
Thunder Beast Arms suppressors are popular with tactical competitors and hunters.
Hopefully, in the near future, it will be much easier to purchase a suppressor for your firearm. Legislative efforts to reform the laws governing suppressors are moving forward in the U.S. Congress.
On January 9, 2017, Congressman Jeff Duncan (R-SC), co-chair of the Congressional Sportsmen’s Caucus (CSC), introduced H.R. 367 to remove suppressors from National Firearms Act control and treat them the same as long guns, replacing the outdated federal transfer process with a NICS background check. The measure picked up 42 Republican co-sponsors and one Democrat co-sponsor. Sen. Mike Crapo (R-Idaho) introducted the similar Hearing Protection Act of 2017 (S. 59) in the U.S. Senate.
The new silencer reform legislation has a key backer — Donald Trump, Jr., the President’s son. “It’s about safety. It’s a health issue, frankly.” Trump Jr. explains in a video interview with Joshua Waldron, the founder of SilencerCo.
Donald Trump Jr. Talks about Suppressors and Shooting Safety
Donald Trump Jr. Talks about Suppressors
“I’ve had the privilege of being able to hunt in Europe, where some of the strictest gun laws in the world exist. Guess what… virtually every hunting gun there is suppressed. It’s about safety. If you had that kind of noise levels in any other industry as you would in shooting sports, OSHA would be all over the place. It’s about safety.” Trump Jr. said the current U.S. suppressor laws are “arbitrary policies by people who don’t know what they’re talking about.” He says it’s time the U.S. follow the lead of European nations, and adopt sensible suppressor policies, “because if Europe can do it, American better well be able to do it.”
NSSF Supports Hearing Safety Act
The National Shooting Sports Foundation (NSSF) supports efforts to make silencers/suppressors easier to purchase. “This legislation will enable gun owners to have better access to hearing protection products and improve safety for the shooting sports by removing extensive wait times for burdensome paperwork processing that does not advance public safety,” said Lawrence Keane, NSSF senior VP and general counsel.
“Anyone who has ever worried about hearing loss from shooting might want to lend their ears to this cause” said Emily Taylor, an attorney at the Houston law firm of Walker & Byington.
Current law imposes signficant barriers to suppressor ownership, Taylor explained: “Currently, the manufacture, purchase, and possession of firearm silencers are regulated by the ATF and must comply with the requirements laid out in the National Firearms Act (NFA). Anyone who wants a firearm suppressor must first get approval from the ATF and pay the required tax. An extended waiting period comes along with the time it takes the ATF to process these requests.”
“The Hearing Protection Act seeks to amend the law so that firearm silencers are treated the same way as long guns,” Taylor added. “The bill would make it so that there is no longer a tax associated with the transfer of a firearm silencer, and anyone who pays a tax on a silencer after October 22, 2015 could receive a refund of such tax. Lastly, the bill would preempt certain state laws that tried to impose taxes or registration requirements on firearm silencers.”
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. Sportsman’s Guide — CCI .22 LR Ammo, $3.49 per Box!
This is the cheapest price we’ve seen in a long time for name-brand .22 LR Rimfire ammo. The sale price of $3.49 per 50-ct box works out to just seven cents a round for this 40gr CCI Blazer rimfire ammo. At that price can enjoy rimfire plinking without worrying about cost — just like the “good old days”. Member price is even lower — $3.32 per box. Grab this CCI Ammo at this rock-bottom price before it sells out.
2. Amazon — Howard Leight Electronic Muffs, $38.76
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 $38.76, with free Prime Shipping. This is good deal — these NRR 22 muffs are currently Amazon’s #1 seller in the category. See All Price Options. For another $7.99 you can get a handy Zippered Carry Case for these Electronic Muffs
NOTE: For regular, sustained shooting we recommend muffs and/or earplugs with a higher NRR rating.
There’s a new line of primers on the market, produced by Czech factory Sellier & Bellot. You can save up to 30% compared to name-brand American primers. For example, the S&B Small rifle primers are now just $19.99 at Cabelas.com, compared to $28.00 for CCI Small Rifle Primers at Powder Valley. We’ve shot the S&B pistol ammo and it was very reliable so we wouldn’t hesitate to use these primers for practice ammo in rifle or pistol. This is an attractive option for high-volume reloaders.
This is a very good mat at an attractive price. This thickly-padded mat has twin side wings for gear. Sale priced at $44.99 at Cabela’s, this offers great value for the money. With 1/2″-thick padding, this mat is comfortable, and the large side wings keep your gear off damp, mucky, or dusty ground. The left wing has a zippered compartment while the right wing has a large pouch that can hold ammo box, rangefinder, or other gear. Up front is a handy bipod stop. Deployed, the mat is an ample 73-1/2″ long x 35-1/2″ wide. The mat rolls up into a convenient package complete with adjustable shoulder strap. With a Lifetime Guarantee, this mat has earned very positive user reviews — 4.8 out of 5 stars. One owner declared: “This is a great shooting mat … rivals many other mats in a much higher price range. The added wing area has plenty of room for ammo, elbows and miscellaneous gear. It has two sewn-in bipod stops and the padding is just right. It is very well built, love it!” — LHeffy.
Here’s a good deal on a modular rifle for the Precision Rifle Series (PRS) Factory Class. This Tikka TSR-1 features a versatile folding McRees Precision Stock. On sale this week for $1499.99 at Cabelas.com, this TSR-1 is $300 Ccheaper than Tikka’s new T3 X TAC A1. In fact the TSR-1 may be preferred by shooters who prefer a slimmer foreend or need a folding stock. ($1798.00 at Eurooptic.com). PRS Factory Class shooters should definitely consider the TSR-1 at $1499.99. Other vendors are currently charging up to $1935.00 for the TSR-1.
6. GSL Technology — $200 Discount on Sound Suppressors
Many guys are putting off purchase of a suppressor in hopes that Congress will eliminate the $200.00 Federal tax stamp currently required for “can” purchases. Relying on poiliticians to perform is problematical to say the least. Here’s an alternative — the folks at GSL Technology are offering $200.00 off high-grade suppressors. So, in effect, the suppressor-maker is picking up the tab for your $200.00 Tax Stamp. NOTE: This special offer is good for Online Purchases Only and the Offer Expires at 11:59 pm on April 30, 2017.
If you shoot long range, you need a scope level. This Discovery scope level is fully CNC-machined to close tolerances for a good fit. It is available with inner diameters to fit scopes with either 1″ or 30mm main tubes. The 1″ version is just $12.95 while the 30mm model is $13.95. You could easily pay $35.00 or more for a 30mm scope level. Purchasers have praised this product: 89% of verified buyers rated this five stars.
8. Amazon — Ten-Pack of 2″-Diameter Splatter Targets, $8.99
We use these splatter targets for fun shoots and practice at 300 and 400 yards. When hit, each shot displays as a bright, neon-green/yellow circle. That makes it easy to spot your shots, even with relatively low-power optics. These targets also work great for handgun practice at shorter distances. For just $8.99 you get ten sheets each with 16 stick-on circles — a total of 160 target bulls.
In this excellent video from SilencerCo.com, NFL Pro Bowl Tackle Fletcher Cox works with LG Outfitters to stalk and harvest Nilgai Antelope using a suppressed rifle. “Nilgai are pretty special animals — they’re from India. Originally brought down by the King Ranch in the 1930s, they’ve just gone nomadic and they’re all over South Texas.” — Leeroy Gonzales, LG Outfitters.
Click below to watch the video.
“Hunting goes back to the way you approach things. You’ve gotta have a game plan.”
As all committed hunters know, the majority of the hunt is in the preparation. Selecting your gear, choosing the perfect location, waking up before dawn, posting up to patiently wait…
Fletcher Cox is all too familiar with putting time and effort into perfecting his craft and honing the execution. As a Pro Bowl defensive tackle for the Philadelphia Eagles, Cox knows that dedication and practice make for the best possible outcome.
Fletcher Cox confirms his Zero before the hunt.
Only the split-second trigger pull is the actual act of the harvest. The rest? That’s the game plan. Here (1:42) Fletcher Cox makes a successful shot on a Nilgai: “We got meat on the ground boys…”
In the near future, there could be changes in the way the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) treats sound suppressors (aka “moderators” or “silencers”). An official government White Paper, dated 1/20/17, was recently leaked to the press and revealed by the Washington Post.
The ATF White Paper makes some key points about suppressors:
1. 42 States currently allow silencers.
2. Silencers are not a threat to public safety, and are rarely used in criminal activities.
3. The inclusion of suppressors in the NFA is “archaic” and should be reevaluated.
4. The definition of regulated suppressor components should be narrowed, so that only key items are regulated as opposed to “any combination of [silencer] parts”.
5. A change in Federal law removing silencers from regulation under the NFA would save resources, allowing the ATF to focus on reducing actual gun-related crime.
Here is the operative text of the ATF White Paper:
Current Federal law requires ATF to regulate silencers under the NFA. This requires a Federal tax payment of $200 for transfers, ATF approval, and entry of the silencer into a national NFA database. In the past several years, opinions about silencers have changed across the United States. Their use to reduce noise at shooting ranges and applications within the sporting and hunting industry are now well recognized.
At present, 42 states generally allow silencers to be used for sporting purposes. The wide acceptance of silencers and corresponding changes in state laws have created substantial demand across the country. This surge in demand has caused ATF to have a significant backlog on silencer applications. ATF’s processing time is now approximately 8 months. ATF has devoted substantial resources in attempts to reduce processing times, spending over $1 million annually in overtime and temporary duty expenses, and dedicating over 33 additional full-time and contract positions since 2011 to support NFA processing. Despite these efforts, NFA processing times are widely viewed by applicants and the industry as far too long, resulting in numerous complaints to Congress. Since silencers account for the vast majority of NFA applications, the most direct way to reduce processing times is to reduce the number of silencer applications. In light of the expanding demand and acceptance of silencers, however, that volume is unlikely to diminish unless they are removed from the NFA. While DOJ and ATF have historically not supported removal of items from the NFA, the change in public acceptance of silencers arguably indicates that the reason for their inclusion in the NFA is archaic and historical reluctance to removing them from the NFA should be reevaluated.
ATF’s experience with the criminal use of silencers also supports reassessing their inclusion in the NFA. On average in the past 10 years, ATF has only recommended 44 defendants a year for prosecution on silencer-related violations; of those, only approximately 6 of the defendants had prior felony convictions. Moreover, consistent with this low number of prosecution referrals, silencers are very rarely used in criminal shootings. Given the lack of criminality associated with silencers, it is reasonable to conclude that they should not be viewed as a threat to public safety necessitating NFA classification, and should be considered for reclassification under the [Gun Control Act] (GCA].
If such a change were to be considered, a revision in the definition of a silencer would be important. The current definition of a silencer extends to “any combination of [silencer] parts”, as well as “any part intended only for use in” a silencer. Compared to the definition of a firearm, which specifies the frame or receiver is the key regulated part, any individual silencer part is generally regulated just as if it were a completed silencer. Revising the definition could eliminate many of the current issues encountered by silencer manufacturers and their parts suppliers. Specifically, clarifying when a part or combination of parts meets a minimum threshold requiring serialization would be useful.
We may see a big change in how sound suppressors are regulated in the future, if new legislation from the Congressional Sportsmen’s Caucus (CSC) becomes law. On January 10, 2017, Rep. Jeff Duncan (SC) and Rep. John “Judge” Carter (TX) introduced H.R. 367, the Hearing Protection Act (HPA). This law would remove suppressors (aka “moderators”) from National Firearms Act (NFA) control, eliminating requirements of extensive paperwork, and purchase of a tax stamp. If the Hearing Protection Act becomes law, suppressors could be purchased through an FFL (after a NICS background check), just like a normal, non-NFA firearm. This would make suppressors more affordable in the 42 states where suppressors are legal to own. What’s more, the new legislation includes a provision to refund the $200 transfer tax to applicants who purchased a suppressor after Oct. 22, 2015.
Suppressors function by trapping the expanding gasses at the muzzle, allowing them to slowly cool in a baffled chamber. On average, suppressors reduce the noise of a gunshot by 20-35 decibels (dB), roughly the same sound reduction as earplugs or earmuffs. In addition to hearing protection, suppressors also mitigate noise complaints from those who live near shooting ranges.
“Many gun owners and sportsmen suffer severe hearing loss after years of shooting, and yet the tool necessary to reduce such loss is onerously regulated and taxed. It doesn’t make any sense,” said Chris W. Cox, executive director, NRA-ILA. “The Duncan-Carter Hearing Protection Act would allow people easier access to suppressors, which would help them to better protect their hearing.”
Guns.com explained how the Hearing Protection Act will change current law: “Since 1934, the federal government has treated devices designed to muffle or suppress the report of firearms as Title II devices that required registration under the National Firearms Registration and Transfer Record and mandated transfers that included a $200 tax stamp. The Duncan-Carter bill would repeal this requirement and treat suppressors as firearms — which would allow them to be transferred through any regular federal firearms license holders to anyone not prohibited from possessing them after the buyer passes an FBI instant background check.”
This video discusses an earlier version of the Hearing Protection Act, H.R. 3799:
“For the past five years, the Congressional Sportsmen’s Foundation (CSF) has worked alongside the state legislative sportsmen’s caucuses in the National Assembly of Sportsmen’s Caucuses, the American Suppressor Association, and many other partners at the state level to normalize the use of suppressors throughout the nation,” said CSF President Jeff Crane. A similar bill was introduced last year by Rep. Matt Salmon (AZ) but that legislation never made it out of committee.
If you have purchased a suppressor in the last year, the HPA could put money back in your pocket. As drafted, the HPA also includes a provision to refund the $200 transfer tax to applicants who purchased a suppressor after October 22, 2015.
This Sunday, December 4, 2016, Tom Gresham’s GunTalk Radio will feature a discussion of suppressors, aka “silencers”, “cans”, or “sound moderators”. With firearms industry experts, Tom will discuss the current regulations for suppressors, as well as efforts to remove silencers from the list of NFA items requiring expensive tax stamps and cumbersome paperwork. With the Republican gains in the November election, there are renewed calls for changes in the laws regulating suppressors. In fact, many suppressor advocates say now is the time for sound moderators to be removed from NFA control altogether, so that suppressors could purchased “over the counter” just like scopes, slings, or other common shooting/hunting accessories.
How Suppressors Work — The Science of Silencers
Suppressors are a valuable accessory for general-purpose rifles, so we would like to see suppressors legal in all 50 states. In addition, we believe the USA should follow the lead of European nations which promote the use of sound suppressors for safety reasons. In most European countries, for example, you can purchase a suppressor easily. There are no difficult barriers to ownership, onerous background checks, or special taxes. The Europeans seem to understand that suppressors protect the hearing of shooters (and bystanders), while suppressor use also dramatically reduces “noise pollution” concerns for shooting ranges in urban/suburban areas. The Europeans also understand that sporting/hunting use of suppressors does NOT increase criminal or gang activity. It is time for the USA to adopt these more enlightened viewpoints.
About Tom Gresham’s GunTalk Radio:
In its 21st year of national syndication, Tom Gresham’s GunTalk radio show airs live on Sundays from 2:00 PM to 5:00 PM Eastern, and runs on more than 200 stations every week. Listen live on a radio station near you or via live streaming from one of GunTalk’s Syndicated Audio Stations. After airing live, all GunTalk Radio Shows can also be downloaded as podcasts.
Muzzle brakes are controversial. Some people swear by them, while others swear at them. Still, there’s no question that a good brake can reduce felt recoil up to 45%. And likewise, the best brakes, when installed properly, seem to have no negative effect on accuracy.
Roy Bertalotto has done considerable experimentation with muzzle brakes, testing dozens of brake designs on his own rifles over the past few years. Roy’s article, Adventures with Muzzle Brakes, discusses various aspects of muzzle brake design and performance. Roy doesn’t claim that his testing is definitive, but his article is definitely worth a read. Here are some of Roy’s interesting findings:
Exit Hole Diameter
“Best accuracy and effectiveness of the brake was obtained with a hole .020″ over bullet diameter. If the exit hole is too small, such as +.005″ over bullet diameter, accuracy suffers. If the depth of the exit hole is too shallow, the metal around the hole will erode very quickly.”
Hole Placement
“The most effective braking was with a brake 1″ in diameter with a 3/4″ exit hole on each side, just in front of the muzzle. The bullet passes through a cone of 35 degrees before it exits the brake. (Like the tank example), Incredible reduction of recoil. But loud and ugly. Very easy to make since you don’t need a spin fixture or a dividing head.”
Bottom Gas Venting Helps Accuracy
“In my tests, not having holes all around the brake effects accuracy a bit. I believe it does something to the bullet by the air pushed ahead of the bullet creating unequal turbulence in the bullet path. I’ve tried a few brakes where I drilled only holes on the top, test fired, and then completed holes on the bottom and in every case, accuracy improved.” Below are spiral-ported brakes crafted by Clay Spencer.
Brakes Work Best with High-Pressure Cartridges
“The higher the pressure of the particular round, the more effective the brake. I have over 20 rifles with brakes. The 220 Swift is the king of reduction. Followed very closely by the 25-06, 6mm Remington, any Weatherby small bore. With a proper brake and a hot handload under a 40 gr bullet, the Swift will move 1/2″ to the rear and 0 muzzle rise! Big boomers with low pressure like 45-70s and shot guns benefit the least.” [Editor’s Note: Roy is judging effectiveness by the percentage of recoil reduction rather than absolute levels of recoil. Obviously if you start with a heavier-recoiling round, the absolute amount of recoil energy reduction is greater. Roy is really talking about efficiency–brakes are most efficient when used with high-pressure cartridges.]
Installation is Key to Accuracy
Roy’s findings are fascinating and suggest that further study of muzzle brakes is warranted. But we can all agree that precision installation of the brake is essential for accuracy. A poorly-installed, mis-aligned brake will degrade accuracy, that is well-known.
Harrell’s Precision has made thousands of muzzle brakes, in many styles and port arrangements. The Harrell brothers offer some good advice for gunsmiths installing brakes: “Muzzle brakes aren’t magic, they reduce recoil by redirecting exiting gas. What’s important is that they are straight and the threads are perpendicular with the base. The only way to get the base and threads perpendicular is to thread, not tap, them on a lathe.”
