Earmuff type hearing protectors typically reduce noise by about 25 dB. The muzzle blast from a powerful muzzle brake equipped rifle is so loud that even with hearing protection the shooter risks suffering some permanent hearing damage after a few shots. The increase in muzzle blast with these devices can be literally deafening, even for shooters wearing hearing protection. Gun muzzle brakes free#As always, in the real world, there is no free lunch. If the advantage of muzzle brakes is reduced recoil, the disadvantage is increased muzzle blast. Clearly, porting systems are less effective than muzzle brakes attached to the end of the rifle barrel. Other porting systems are said to deliver about a 20% reduction in recoil. Mag-na-port claims an average recoil reduction of 15% with their porting system. The other pair are 50 degrees apart on the upper surface of the barrel and closer to the muzzle. The first pair of these are 180 degrees apart on opposite sides of the barrel, starting about 1.5" back from the muzzle. Mag-na-port cuts a total of four slots into the barrel. On the other hand, they slightly reduce bullet velocity, tend to collect fouling, make the barrel more difficult to clean, and, most importantly, cannot be removed. They are a neater installation and cannot loosen with use. Such brakes avoid the added length and the slight bulge at the end of the barrel of a screw-on muzzle brake. These are "installed" by porting (drilling or cutting angled holes or slots into) the barrel itself. But a considerable percentage of the escaping gas finds its way through the holes drilled into the body of the muzzle brake and is deflected outward and at an angle to the rear. Some of the expanding powder gas pushing the bullet also passes through the center of the muzzle brake and exits the barrel in a normal manner. The bullet never touches this type of muzzle brake, simply passing through the muzzle brake tube as it leaves the barrel. There is no loss of bullet velocity or change in the rifle's ballistic performance with these muzzle brakes. Screwed firmly into place, they add a couple of inches of length to the end of the barrel, and are usually slightly fatter than the normal outside contour of the barrel. They are essentially a ventilated steel tube bored a little larger than the groove diameter of the barrel. The Recoil Reducer, Magna-brake, Accubrake and BOSS muzzle brakes are screwed onto the end of the barrel. These devices reduced recoil by an average of 42.86%. 416 Weatherby Magnum rifle for testing, the Recoil Reducer reduced recoil by 39%, the KDF Slimline reduced recoil by 40.6%, and the KDF Regular reduced recoil by 49%. In their literature, Weatherby compares the effectiveness of the Accubrake to several other makes of muzzle brake. Weatherby, who claims that their Accubrake is the most effective on the market, claims recoil reduction of up to 53%. Browning, whose BOSS (Ballistic Optimizing Shooting System) is both a muzzle brake and an accuracy tuning device, claims a recoil reduction of up to 30%. Mag-na-port International claims recoil reduction of up to 45% for their Mag-na-brake. Ahlman's claims a 50% recoil reduction when their Recoil Reducer muzzle brake is used on large magnum rifles. The actual effectiveness depends to an extent on the cartridge for which the rifle is chambered. Muzzle brakes reduce recoil by diverting part of these gasses to the side so that they do not add to the rearward recoil.Ī properly designed muzzle brake can significantly reduce recoil. The second is the expanding powder gasses that are pushing the bullet and must also exit the barrel. The first is the bullet itself, which cannot be interfered with. Recoil (kick) is the rifle's reaction to the action of the bullet being accelerated down the rifle barrel. Newton's law says (to paraphrase) that for every action there must be an equal and opposite reaction.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |