| 摘要 |
A muzzle brake for reducing swing, climb and recoil of a rifle is improved with a plurality of spaced ports intersecting the exit throat of the brake and venting gasses which would otherwise form an undesirable boundary layer effect. The effect of the ports is to prevent formation of the restricting boundary layer in the throat and to reduce the acceleration of gasses in the throat, thus reducing the flash effect of hot incandescent exit gasses.
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