.22 supersonic reaches full velocity in about 16" of barrel, and becomes measurably slower after about 24". I would think 9-10" would give subsonic velocity with hi-speed ammo. At that length you...
Type: Posts; User: gundoc
.22 supersonic reaches full velocity in about 16" of barrel, and becomes measurably slower after about 24". I would think 9-10" would give subsonic velocity with hi-speed ammo. At that length you...