That’s why so many fail. The rifle used for this was chambered for the 6XC (view rifle details). Thanks, Bernard. 24 muzzle devices for .30 caliber are tested for recoil reduction on a Lancer Systems L30 Heavy Metal .308 (AR-10 / SR-25). vg6 precision (in stock) 5.0 (1) hellfire muzzle brake. Keep up the amazing and fascinating work! Also, the boss has been out for a while, and we’ve made a lot of advancements in muzzle brakes since it’s release. Although the numeric values of the measured force over time and calculated free recoil impulse are different, the percent difference is virtually identical. I’ll publish that data at some point, but I’m trying to focus on muzzle brakes for this series. I can probably include a suppressor for those as well. A lot of people are concerned with that on suppressors. Forgive me if this was addressed earlier and I missed it, but I know many people and myself that have been wondering why you did not include several other popular brakes on the market today? This took a ton of time for each brake, so I just had to limit the number I included. Hopefully this will give us insight into what types of designs are most effective, and even those other manufacturers can benefit from that. The Lantac wasn’t included in these tests. There are some really great guys in this industry that have helped me out. I have both recoil data and sound data. … yeah! I’ve been looking for a good brake for my two Ruger 6.5 CM rifles and now, thanks to your testing, I’ve found the APA Little B. Precision Firearms LMD Those ballistics are similar to other popular 6.5mm precision rifle cartridges, like the 6.5×47 Lapua and 260 Remington. It’s fun. That weight includes the scope and mount shown in the photo. Here is a direct link to that comment: http://precisionrifleblog.com/2015/07/07/muzzle-brakes-recoil-results-for-6mm-6-5mm/#comment-3366. Regardless of the reason, both the Surefire and OPS muzzle brakes had underwhelming performance when it came to recoil reduction. The wrench flats make this muzzle brake very easy to install and remove. It represented the heaviest rifle in our test, although that weight is not uncommon for a precision rifle. Another reader asked a very similar question, and I answere... Heath: You’re pretty much regurgitating Bryan Litz’s books with this particular present... Joe Bellicini: Once again, well done. I think (hope) I can shed some light on why caliber specific brakes didn’t do much worse. Elite Iron Bravo 1 .308 Muzzle Brake and Cap 5/8"-24 Thread- Parkerized. I ordered a couple for me personally, and they were outrageously expensive. But I do measurements for the new line of suppressors that ThunderBeast released this year. That rotation could be mitigated by a specific (probably a per-cartridge design) neutralizing downward push .. or by removing enormous rearward push .. or by leaning into the recoil enough to limit any initializing motion, but that becomes more difficult for larger calibers, for continuous fire, and frankly for most lay users. That weight includes the scope and mount shown in the photo. I have to guess there might be a few. Thanks Cal for all your time and effort. I honestly don´t know how you do it, I have done a few tests of optics and since I read your optics test I realized that I should stop and re-think my approach to testing in general. I’m currently building my first semi-long range rifle and want to include a muzzle break into the project. But I fired a lot of rounds through those muzzle brakes and I couldn’t be more confident that these results represent reality, however tough that might be for some people to come to terms with. You can see the suppressor isn’t as effective at reducing recoil as many of the muzzle brakes, finishing in the bottom half of the pack. However, the TBAC Compact Brake is also designed to be a Thread-Over-Muzzle-Brake (TOMB) for Thunder Beast suppressors, and it performed much better than those other two designs. I’ve been personally using one for over a year on my primary rifle. I can include that info. Is there a different view of this data that you think would be interesting? I like small groups when I hand load, but but like to shoo... Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Running a business is hard, I can say that. I don’t want to get too far ahead of myself, but the monster 300 Norma Magnum rifle with a good muzzle brake had about the same recoil as the 6.5 Creedmoor with no muzzle brake. It also helps you separate the different types of recoil reduction, so you could place more weight on either overall momentum or peak force, if you thought one was more important than the other. Keep up the great work! Without publishing the 6.5 signatures, could you tell us how the 6.5 mm compared to the 6mm in actual lbs of force? Unauthorized use and/or duplication of this content, data, or other materials is strictly prohibited without prior express and written permission from the author. I tested the effectiveness of having a caliber-specific brake on 4 very different muzzle brake designs that I had in all calibers: the. Independent tests have shown that muzzle brakes with price tags up to 3 times that of ours, and advertised as being much quieter, are in fact only 4-to-6 … I expected the caliber size of the bullet hole in the brake to make more of a difference. Categories: AR-308, Muzzle Devices. I help run a company with 100+ employees, so that takes a ton of time and I do this in my spare time. I did want to point out that some of these brakes were caliber-specific to 6mm and others weren’t. Ultimately, it was just a time thing. Learn more about our Return Brakes work by redirecting gas, so it makes sense that the more gas a cartridge produces … the more benefit the brake can potentially provide. Here are the muzzle brakes I wasn’t able to test on the 6.5mm rifle: Badger FTE Muzzle Brake – As I explained under the 6mm results, the Badger barrel clamp design requires a very specific barrel diameter at the muzzle, and it didn’t fit on this rifle either. Very interesting, just would be great to have list of brakes and picture of Lund/ SJC Titan This is great stuff. You can watch a video of me running through this for one of the muzzle brakes in the previous post. Benny Hill Rolling Thunder There won’t be any new brakes appear that haven’t already been mentioned. Both of those brakes had outstanding performance in terms of recoil reduction. That’s quite an accomplishment, considering it is almost 1/2 of their size! Hey, Chris. Cal – another incredible write-up!!! I just try to be as transparent and objective and open as possible, but that still brings out an ugly side of people. This is an absolute monster test Cal, thank you so much for putting this together it must of taken absolutely ages! Cal
The second issue I … My first thought was what the Thunderbeast brake along with the new Ultra 7 or Ultra 9 might look like on recoil reduction. Someone else asked a similar question, and I published a chart in response to that which shows how the 6XC and 6.5 Creedmoor compare with no muzzle brakes. I’m just curious as to the difference in the actual recoil between the two calibers running your loads (with and without brakes). … I know that can be frustrating for guys who didn’t have their favorite represented, but ultimately … I do all this in my spare time, and couldn’t dedicate more time to this than I already did. Other people only think about recoil reduction. It is a nice product. I already did most of the leg work. A lot of people never think about that side of this. Likewise, there are a lot of guys running the Surefire muzzle brake. Out of stock. Awesome work as always! Many thanks. I am a bit surprised by the results in that the Four Star and APA had such a margin over other similar designed brakes…but in all the ones I have used over the years…the larger open side chamber types are more aggressive at curbing that force and my personal perception mimics your results. I’ve just learned a lot about muzzle brake design through this process, and that is my educated guess. For more info on the test equipment and how the data was gathered, please see the previous post. Here is our secondary view of that same data: And for the sake of transparency, here are the specific calibers of each muzzle brake used for the 6.5mm recoil tests. contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses. precision armament (in stock) - 4.6 (34) ar .308 gamma 762 muzzle brake 7.62. vg6 precision (in stock) 5.0 (5) ar-15 gamma 300blk muzzle brake 300 blackout. Excellent work as usual. Cal: Ha! Glad this aligns with your experience. Your work on scopes was excellent and I am really enjoying the muzzle brake series so far. Out of Stock! Notice on this rifle I also included a “High-End 9-inch Suppressor” for comparison. “Just the facts ma’am.” Really important question. I think the apparel is a reflection of the brand that is on it. I’m sure you’re sick of hearing this, but as usual great work! The results are based on the average of multiple shots fired with each muzzle brake. Since Hornady’s release of this cartridge in 2008, it has gained quite a following in the precision rifle world. That can go a long ways to reducing perceived recoil as well. As long as the barrels fit the specific contour requirements at the muzzle, you could take it off one rifle and put it on another very quickly. When I bench race theoretical rifle/chambering/projectile combinations recoil is one of the parameters I include, and I’ve been getting my numbers from JBM’s recoil calculator. http://www.thetruthaboutguns.com/2015/04/jeremy-s/ar-15-muzzle-brake-shootout-2/. Looking forward to the 30 cal results. I started out firing 5 shots per muzzle brake, but as I refined the system and setup, my data became so consistent and repeatable that 5 shots seemed like I was just wasting a lot of good match-grade ammo without adding any value. Most excellent Sir! I’m just publishing the findings at this point. 55 Comments. It seems like a fairly persnickety design, but we’ll see if the performance makes up for that in the next few posts. Add to cart. Surefire is an established and recognizable brand in the industry, so I was surprised to see where they fell on this chart. I’m glad there are experts like you out there. He takes your money then never delivers the merchandise. It was actually my phone calls with Jason from JEC over a year ago that got me thinking about doing this test. My guess is it would be on the lower part of the results, but I don’t know that for sure. A couple sharp guys suggested I also display the recoil signatures of each muzzle brake overlaid on the same chart. He was excited about it, but I guess he got busy or might have some personal stuff going on. ar .308 m11 muzzle brake 30 caliber. If you had a blog … I’d read it! That’s a great question, Carl. Those external flats are completely nonexistent on the .223 version, so its middleoftheroad placement wasn’t surprising to me. I tried hard to get them, but wasn’t able to pull it off. A Data-Driven Approach To Precision Rifles, Optics & Gear, I ran tests to see how much it mattered if a muzzle brake was caliber-specific, and those results were also surprising. Remember, I’m not trying to convince anyone one way or the other, I’m just trying to present the data I collected and leave it up to you to draw your own conclusions. I’ve got a 308 bolt action rifle with a muzzle brake and one that doesn’t have any threading at the end… when shooting 200+ yards (I don’t really hunt, just use them for target practice) with the same scope, the one with the brake is much more accurate. Nice job Cal, While suppressors and muzzle brakes do have a lot in common, they also have very different design constraints. My 6XC rifle weighed in at portly 16.2 pounds with a bare muzzle, and no bipod or magazine. Free FedEx Option* (1) POF TRIPLE PORT MUZZLE BRAKE 223 $ 52.99 (4) Troy CLM06BT00 Claymore Muzzle Brake $ 44.74 (1) LANTAC DRAGON MUZZLE BRAKE 5.56 223 $ 125.19 (0) LANTAC DRAGON MUZZLE BRAKE … Intl. R&D MRAD, There is a less-scientific concurrent test going in 5.56 is you weren’t already aware: Well, Heath, I couldn't disagree more. Plus, I get to meet A LOT of sharp guys along the way. I actually didn’t test to see if there was zero shift between brakes. Having said all that … I don’t mind showing you the data, for whatever it is worth. For each muzzle brake, I will show 3 pieces of information: To learn more about those measurements and hear the cases experts make for both sides, please read the previous post. All 3 cartridges are very popular among the top shooters in the Precision Rifle Series (see the data). Elite Iron OP COMP AR-10 .308 Muzzle Brake 5/8"-24 Thread- Parkerized. Ouch! I used my personal handloads for testing the 6XC, which launch a Berger 105gr Hybrid at 3,000 fps. That means the suppressor is spreading the recoil force over time, but isn’t as effective at actually reducing the total amount of force coming back. It’s hard to leave your opinions out, but I try to be disciplined in that. Thanks, Mark. The rifle I used had a 22” fluted Heavy Palma barrel, which launches the 140gr bullet at 2800 fps. If you want to stretch out and get longer range, I’d highly recommend the 7mm Rem Mag (or similar 7mm magnum). Great question. That means it wasn’t what I expected, I had some bad assumptions … And I actually learned something I didn’t know. I know I’d rock one! The Lantac might be a great brake … I just wasn’t able to include all muzzle brakes on this test. I did see that 5.56 test, and really like his approach. My tests weren’t a free recoil scenario (stock is against a rigid steel frame), but firing a rifle from your shoulder isn’t free recoil either. Price $174.99. I’ve never seen anything like it being done either, and that is always fun to do something original. The rifle weight, stock design, barrel contour, and other things are different, and those things can affect the recoil signature. I wanted to ask before you post the .30 caliber results if you’ll be including the Lantac – since some .30 caliber units were included in these 6-6.5 results but many others were not. Hi Cal, Some experts lean more towards that being related to the total impulse or momentum, and others think it is more linked to the peak force. Meaning the larger caliber only has an extra 5.30 mm^2 for the air to move. When using ATC with a 10 shot group what would be an acce... Shootin’ Okie: Thanks, for replying. There were two muzzle brakes that separated themselves from the rest of the group: the brand new Alamo Four Star Cowl Induction Muzzle Brake, and the very popular American Precision Arms (APA) Little B*. This post summarizes the results for the recoil tests ran on 20+ muzzle brakes using 6mm and 6.5mm test rifles. Force is a vector, so angles have a big impact. Smith Enterprise - AR .308 Muzzle Brake .905 30 Caliber; Timber Creek .308 Heart Breaker Muzzle Brake; Review of the Best AR-10 Muzzle Brakes. Our 308 rifle weighed in at a scant 6.2 pounds with a bare muzzle, and no bipod or magazine. Thanks for subscribing to our newsletter! John, I can’t say for sure how it would perform … but it is basically the same design as the Shrewd brake, but isn’t as long. Now I don’t know the exact values, but most brakes use 0.5mm diameter increases. vg6 precision (in stock) 4.8 (3) #3 muzzle brake … July 7, 2015
Here is a quote from Teddy Roosevelt that helps me keep perspective on days like this: “It is not the critic who counts; not the man who points out how the strong man stumbled or where the doer of deeds could have done them better. The recoil data was collected using high-speed, high-resolution force sensors. I study and enjoy your every post. produced in black Nitride for your pleasure. Elite Iron OP COMP AR-15 .223/5.56 Muzzle Brake … MB-4 muzzle brake from Adamantium Machine. This test was a little over the top, but hopefully it will help advance muzzle brake designs by showing us what works best. He may be going through some growth pains or personal stuff. We’ll start with the smallest caliber tested, the 6mm. I’ve found heavier rifles help me shoot better. Glad you appreciate my approach. silencerco (in stock) 5.0 (1) ar 308 epsilon 762 muzzle brakes. And if the barrel doesn’t have a diameter of at least 0.800” at the muzzle, you can’t use the Badger FTE muzzle brake. The guy who taught me how to hunt and reload, and really passed on the passion for rifles to me, is now getting older and isn’t able to shoot rifles with a ton of recoil any longer. One the 6XC, I tested all of the muzzle brakes except the Badger (it wouldn’t fit because of it’s barrel clamp mount). Here are the muzzle brakes I wasn’t able to test on the 6.5mm rifle: This is just one of a whole series of posts related to this muzzle brake field test. Hey, Dunc. Looking at where the other brakes ended up on the 6mm and 6.5mm, I’d expect it to have similar performance. They’re something special. On an unrelated note, would you be willing to publish the data you created? And some of those are just really similar to others that I did include in the test. Now compare this to the total frontal area the gases have to vent. Remember, I only found a 1-3% performance improvement if a brake was caliber-specific, over it just being bored to a standard 30 caliber. Hey, Mark. Since clearly the brakes are much bigger than that, it makes sense that it was hardly 1-3%. I’ve had mine for a little while, but I’ve heard a couple people struggling to get orders recently. You could probably do it with a couple calculations, like going from force to acceleration by dividing out the mass of the rifle … but I’ll leave that up to you to do if you’re interested in getting to that. Want to be the first to know when the next set of results is posted? I definitely tested the two elements you’re referring to: recoil and muzzle rise. So the recoil results should be directly applicable to those cartridges as well. It’s disappointing that JEC didn’t return calls/emails on the request for their 6.5 muzzle brake. I’m glad you find the approach helpful. I really like your approach and writeups, stellar job all around. You’re writing the only articles I wait for. How do we get a couple of your hats to give-a-way at our Sept 12 Match? chris. Way to go. So I’d bet you were trading in performance in terms of recoil reduction for those other two features. Thanks, again! Zak has all the data that we collected, and I think he plans to publish all of it as well. I have more than a couple other things in the works, which I’m excited about. Patriot Ordnance Factory, 308 Triple Port Muzzle Brake, 5/8 X 24 Rh, Black Finish 309POF USA has positioned itself through superior engineering and design in making the AR platform the absolute best … It goes a long way. DPMS Miculek Thanks! So I backed that down to only be 3 shots per muzzle brake. .223’s have no real kick in the first place so I suspect it was more designed to cause a neutral balance regarding stacking forces (relatively large ports on top but modest/minimal baffling/redirection on the side.). You have to modify the barrel (arguably the most critical part of a precision rifle) to attach a far-less important accessory. There is some cross-over, but you can see there are some more popular in one discipline than the other. I wish I could have tested it on all the rifles. So I wanted to present that data independently of one another, so people could draw their own conclusions based on their circumstances and personal preferences. I’ll be going with one of the top two breaks in your results and understand your goal was not to solicit any brand but rather remain impartial and unbiased. There are some outstanding, high-BC bullets for the 7mm … that aren’t near as heavy as what you’d need to run in a 300 or 338 to achieve the same level of aerodynamics. The depth of your research-lust knows no bounds and we’re all fortunate to have you as a source. I did those separately, because some people might put more weight on one or the other (depending on the application). I may try it at some point. I’d LOVE to see how Zac was able to cut the noise and weight that much, plus make it stronger. Precision muzzle brake indexing is now a possibility with our jam nut. As the gas … It’s different from their .223, the .308 unit has a sequence of pronounced ‘flats’ on its side ports – larger than the general outside diameter of the unit itself. That’s what this is all about. I’ve been running brakes on my rifles for years in order to cut down on recoil and maintain sight picture. Wow, Adith. Notice how the suppressor stretches out the amount of time the recoil event is spread over, but the muzzle brakes keep it about the same amount of time and do a better job of reducing the size of the “area under the curve.”. I find your methods and approach very impressive. I think they dampen the micro-movements as you fire the shot. Did any of the brakes significantly impact muzzle velocity? Added to Cart! I did publish exhaustive details on the setup, so if someone really wants to know … they could always duplicate what I’ve done here. And, yes … there some brakes directed more blast back toward the shooter. Just keep in mind it isn’t an apples-to-apples comparison. Let’s start at the top. Please check your email for confirmation message, 128 products / 313 models, Fortis Manufacturing 7.62MM R.E.D. But, that’s why I actually run the tests and don’t just talk about this stuff! Fast & Free shipping on many items! If for any Policy. Thanks, Jeff! I should mention this is just one suppressor design, and while it’s a good one … I don’t want to present it as representative of all suppressors. So our 6, and 6.5 mm brakes will have areas of 33.18, and 38.48 mm^2 respectively. Whatever makes them look better rifle details ) my first semi-long range rifle and want to be in! Rifle ) to attach a far-less important 6 308 muzzle brake be satisfied m just trying to focus on brakes... 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