![]() Now, with directional or contoured baffles, we observed huge sacrifices in accuracy with non-concentric but safe clearance holes, and this is due primarily to, directional/contoured baffles, gases being redirected into the bullet, buffeting it as it travels through the brake. We tested with holes intentionally drilled off-center and saw only minor POI change, but no reduction in actual accuracy. 010″ clearance between the bullet and baffle. Now to address concentricity and accuracy(clamp-on as well as threaded brakes) With true 90 degree baffles(which we use exclusively), we have seen zero affect on accuracy from non-concentric through holes, so long as there is a minimum of. This has been tested extensively, chopping off the brake at the first port to eliminate the braking effect, we still see consistently smaller groups than with nothing clamped around the barrel. This benefit comes from the increased integrity of more material, and the clamping forces, creating a dynamic reinforcement of the muzzle as the bullet exits, resisting the distortion that occurs as the bullet uncorks from the crown. However, Properly Designed (once again), Clamp-On Muzzle Brakes will actually INCREASE a rifles accuracy potential. It just means a re-zero and does NOT effect data. This is a harmonic issue, and does NOT harm a rifles ability to shoot accurately. 338″ with the same hole size, though we do use a smaller hole for 1/2-28 thread brakes unless specified larger.)Īccuracy Effects Any muzzle device or change to the barrel can and will affect POI. On our brakes, there is zero performance gained by having less than 1.6x caliber through hole, which is why we can accommodate. 020″ is minimum safe overbore and has nothing to do with performance. If you follow minimum safety clearances, and check for alignment, you’re good to go. 020″ minimum overbore for brakes, and slightly larger for cans. That doesn’t stop people from running Brakes or Suppressors on them. No Kidding?!?! Neither are the bores on factory threaded barrels, and their normally worse. Single sided clamps, mechanically, can only “squeeze” the half of the barrel that has the clamping slot, and if mis-measured, or over torqued, will pull the brake OUT of alignment axially and radially.(see Accuracy Effects below for why this matters)Ĭoncentricity issues with factory barrels This argument is one that I see and hear regularly, “Factory bores aren’t concentric”. As for the single side clamp brakes Two sided clamps will “wrap” evenly and apply true 360degree clamping forces, as well as ensure alignment axially as well as radially, even on tapered barrels. So, from a secureness standpoint, If you follow the instructions, You will have no issues. On most of them it took 3 shots or more before they went flying, and even then, there were no baffle strikes (which is what we were testing for). So then we took brakes that were drilled properly, and torqued them to about 1/2 of the recommended torque, and proceeded to try to intentionally send them down range. The results were that even though the brakes were destroyed, they did not slip or fly off, and there was no damage to the rifle. We took our brakes, with smaller than bullet holes and no bullet holes in the 2nd and 3rd baffles, and tried to “shoot them off”. Before we ever brought our brakes to market, 12+ years ago, we did “destructive testing” to test the security. How secure are they? Really? Very!!! To put things into perspective, our brakes, when the instructions are followed, are clamped more securely than the fork-tubes on a motocross bike. These are NOT properly engineered, and are subject to becoming projectiles, but more on that later. There are also companies that make clamp-on brakes that use a single set of screws on one side, or on the bottom. These are all properly engineered to provide secure attachment. There are many myths, misunderstandings, and misconceptions about Clamp-On Muzzle brakes, So I’m going to take the time to discuss the ins and outs of why you shouldn’t be afraid of a properly engineered Clamp-On Muzzle Brake.įirst off, the reason for the BOLD type for the “Properly Engineered” in the introduction There are several companies other than Kahntrol Solutions that make clamp-on brakes, that use a similar clamping method, sets of screws on either side.
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