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.

Muzzle brake for 300 win mag