They don't make any more noise than a pellet gun, they have no powder in them. If you shoot them in a 10/22 they won't eject. I just shot one in mine to check it out.
I guess I was mistaken about the subsonic amo. What I have uses only the primer to fire, no powder. pretty neat for plinking in the back yard without the neighbors hearing anything.
I guess I was mistaken about the subsonic amo. What I have uses only the primer to fire, no powder. pretty neat for plinking in the back yard without the neighbors hearing anything.
That would be CB caps...
A longer barrel with a bolt action and sub sonic ammo is purty darned quiet, much quieter than if fired in a shorter barrel semi auto..