noun
or rotating ring
: a soft metal band around the lower part of a projectile to prevent the escape of gas and by fitting into the rifling to give the projectile its spin
noun
or rotating ring
: a soft metal band around the lower part of a projectile to prevent the escape of gas and by fitting into the rifling to give the projectile its spin
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012