The Little Bastard is the smaller version of Fat Bastard, making it ideal for smaller rifles that can't handle a large muzzle brake. The LB can be turned down to .850" diameter to blend completely as if it were an integral part of the barrel on a non-magnum cartridge. Magnum cartridges should not be turned down. The brake should be left 1.0" in diameter and chamfered on the end to blend into the barrel.