In typical Technoidal fashion, I’ll do the last first. I will sure keep that one in the back of my mind when around people with brakes…as is often the case in Africa shooting magnums. Great info: Did you look at the bore diameter of the brake compared to the bullet diameter ? I was just curious and had all the equipment setup, so I measured it. Hey, William. For me to be confident in accuracy results, I’d want to use a rail gun … and I don’t have one (yet). It sounds like an interesting idea. SHOT Show 2018: Really Right Stuff’s New Products, Online Precision Rifle Training from Top Shooter, Jake Vibbert, Extreme Long Range Tips 2: Spotting Shots & Ranging, Wyoming ELR Scopes & Mounts – What The Pros Use, Extreme Long Range Tips 1: Optics & Mounts, How To Measure The Distance To The Lands On Your Rifle Barrel, Alamo Four Star Cowl Induction Muzzle Brake, American Precision Arms (APA) muzzle brakes, Holland Radial Quick Discharge Muzzle Brake, Dr. Carlucci’s textbook, Ballistics: Theory and Design of Guns and Ammunition, https://www.youtube.com/watch?v=327beJrl5vU, Best Bigbore brake - Long Range Hunting Online Magazine, Statistics for Shooters – Executive Summary, Precision & Group Size – Statistics for Shooters Part 3, Muzzle Velocity Stats – Statistics for Shooters Part 2, How To Predict The Future – Statistics For Shooters Part 1, Tactical Scopes: Field Test Results Summary & Overall Scores, Powder Temp Stability: Hodgdon Extreme vs. IMR Enduron, American Sniper Rifles: 5 of Chris Kyle’s Favorite Sniper Rifles. I like small groups when I hand load, but but like to shoo... Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. You can see where that will fall if you look at the upcoming posts in the Other Posts In This Series section in the post. The powder charge is similar between the 6.5 Creedmoor and 308 Win, so the momentum of the gases is virtually the same. Personally, I’d be afraid it’s snake oil … but it certainly might not be. You brought up a great point regarding the up-sides and down-sides of the rearward facing baffles and their increased concussion. Here is a look at the cartridge capacities tested, along with a couple other popular rounds for context on the size of the 300 Norma. Both should be proportional to the impulse (area under the force vs time curve), but would likely be the bigger difference that you might be expecting. I didn’t test accuracy with the brakes, because I couldn’t think of an objective way to do that. Mag-na-port International claims recoil reduction of up to 45% for their Mag-na-brake. In the context of recoil reduction, one bit of data I wish were available for comparison is brake-mounted suppressors and how they would perform in comparison to bare muzzle brakes and direct-thread mounted suppressors. I’m going to post those results soon, and I will point out the correlation with recoil in that post. So for the force to be in the same ballpark, if the weight is much lower, then the acceleration has to be much higher. It finished about the same as the ability to stay on target … usually towards the tail end of the pack. Huge, square shotgun-muzzle brakes with big, flat edges like those modeled after the muzzle brakes found on Howitzers (and .50 cals.) One of the tips Greg gave me was if you want to really push a muzzle brake, test it on a big magnum pushing heavy bullets. So I’m not sure what the impact would be. I did post how a suppressor compared for the 6XC, 308 and 300 Norma, but didn’t combine that stuff in the summary. Ah – Thanks I was ambiguous. Want to be the first to know when the next set of results is posted? So I backed that down to only be 3 shots per muzzle brake. But given another tuned load to barrel/brake system, can you get back to the same accuracy as bare muzzle for a give brake? Or the T4. I didn’t test the Surefire suppressor, so I can’t say for sure. One muzzle attachment gives you the ability to directly attach a Hellfire brake, and, through the use of Area 419’s suppressor mounts you can attach TBAC, Crux, SAS Tomb, SilencerCo Omega (and therefore Dead Air Nomad), SilencerCo Harvester, Saker, and universal 5/8-24 direct threaded suppressors — with more coming. The guy beside me shot while I was stretching forward. Very good analysis Jim. The guy I debated at first claimed that muzzle brakes provided more recoil relief, then when I called him on it he backed up and said his custom muzzle brake was better than any suppressor he'd tried and then he tried to explain his position using som BS "science" that made me question myself just enough. The only difference is the bullet. . I’m just trying to publish stuff that’s helpful to fellow shooters, so thanks for the taking the time to let me know it’s working for you! However, in the section on muzzle devices from Dr. Carlucci’s textbook, Ballistics: Theory and Design of Guns and Ammunition, he reminds us “Best design practice is to divert gases to the sides of the weapon, because rearward diversion could affect an exposed gun crew.” During my tests, a manufacturer sent me a prototype of a muzzle brake with 45° baffles back toward the shooter. Good for you Cal! I also thought about getting 3 shooters to shoot a few 10 shot groups with each brake, and average all the results … but I think you’d be “in the noise.” I doubt it would offer enough value to justify the cost of the match-grade ammo it would take to conduct the test. Thanks! You need a donate button or something. I heard someone say “Don’t fix happy” … so if you’re happy with them, I wouldn’t change. In fact, some outfitters and professional hunt won't hunt with a client who has a muzzle brake on their rifle. But, I did test the TBAC Compact Brake, which is the Thread-Over-Muzzle-Brake (TOMB) designed for the TBAC Ultra-9 Suppressor. Trijicon Ventus: Measuring Range AND WIND! But for this lightweight 308 Win, all the brakes were much more effective at reducing the peak force than they were at reducing the overall momentum. At this point, you know everything that I do about what happened. The actual effectiveness depends to an extent on the cartridge for which the rifle is chambered. It is not as effective as directing that mass backwards but it does reduce recoil. There was actually a sharp engineer that chimed in in the comments, and tried to explain why this was the case. Look forward to the noise data! There seems to be a strong correlation between the angle and overall rank. As we discussed in the recoil post, when someone claims a product “reduces recoil by 50%” … it usually isn’t clear what they’re talking about. That was the Alamo Four Star Cowl Induction Muzzle Brake for all but the 308 Win, where the APA Fat B* did slightly better. I actually think this 3-part series m... Cal: Great question, Joe. Without the adjustable gas block and skeletonized carrier, the Hypertap still reduced felt recoil by 87%! I didn’t run the 300 Norma Mag as hot as what I’ve heard rumors of other guys doing. For 308 ammo, I selected the very popular Federal Premium Gold Medal 168gr SMK Match-Grade Factory Ammo. So if your brake diverted 50% of the gasses, then a cartridge with 3 lbf-s gas and 1 lbf-s bullet would have 2.5 lbf-s after the brake, while one with 2lbf-s for gas and bullet would have 2.0 lbf-s after the brake even though they had the same starting impulse. I’ll also be sure to point out any brakes that reduce recoil unusually well compared to how loud they are. I do plan to post some stuff related to muzzle blast. When using ATC with a 10 shot group what would be an acce... Shootin’ Okie: Thanks, for replying. SHOT Show 2020: Leica PRS 5-30×56 with PRB Reticle! A muzzle brake is a device that is attached to the end of a rifle barrel to reduce recoil. I do appreciate the question, because I didn’t even realize I had published the data for a TOMB brake with and without the suppressor attached. I am pretty amazed the range of difference and none of us would be the wiser without someone like you doing the work. I am very glad I waited a while and you are helping me getting my dream gun built for ultra long range shooting. One of our local benchrest ranges has put up removable barriers between benches for non-completion use. I just didn’t post any of that data (yet). A muzzle brake is designed to capture as much of the energy contained in the muzzle blast as possible. Cal has an engineering background, unique data-driven approach, and the ability to present technical information in an unbiased and straight-forward fashion. I believe it’s a serious safety issue, but you don’t have to believe that. I switch back and forth all the time. Seems the suppressor woould cancel out the effect of the brake yet supposedely the brake improves the suppressor effect by operating as a 1st baffle. Wow, Schmidt and Bender of muzzle brakes. However, I would have been quite interested in a parallel noise level study of the brakes you tested to see if there was a sweet spot where you get a generous reduction in recoil without a proportional increase in sound level or for that matter whether a reduction in recoil always cause a parallel increase in sound level. That could’ve been much worse, so I’d just prefer to go a little safer … Even if it means I endure slightly more recoil. But, that’s why I actually run the tests and don’t just talk about this stuff! Both the 6mm and 6.5mm brakes had a similar cluster from 26-36%. Field Tests & Studies, Reviews & Field Tests, Suppressors & Muzzle Brakes I’m not positive about that, but that is the last I heard. “a prototype of a muzzle brake with 45° baffles back toward the shooter .. a friend …caught some shrapnel in his side. Some of these are also true to some extent with a muzzle brake. Sorry, Gregory … I’m not familiar with either of those brakes, so I couldn’t say. A Data-Driven Approach To Precision Rifles, Optics & Gear. (For more info on this, see the recoil post.). I have seen the APA FB tested on Greg’s test sled and the T3 brake is even more effective than that. Have you ran across the J E Custom muzzle brake (not to be confused with JEC Custom). Most suppressors reduce felt recoil, muzzle climb, and most importantly noise and concussion. Wish I had a CNC machine! … It is very literally the next evolution in firearms design. Glad you found it helpful. Eventually all of the gas escapes along the path of the bullet, and none goes to the sides. And finally, what will be really different between the two is the acceleration of the rifles. Muzzle brakes aren’t just for high-recoil rifles. At least it’s plausible that could happen. That is almost 20% more than the 6.5 Creedmoor. You can view those results here: Greg from Terminator Products recently sent me a cool video of a test he did with a few of these brakes. As usual, a very useful review – keep up the great work! That’s awesome, thank you for your explanations Cal ! While suppressors and muzzle brakes do have a lot in common, they also have very different design constraints. Good to know someone else could benefit from it! For more info, check out. The rifle I used is not a precision rifle, but it represents something most people are familiar with.
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