If a supersonic round goes past you you hear the sonic boom as a crack then the noise from the muzzle as a bang.
I can’t think of a subsonic round that would be accurate at 150m (deLisle carbine?) but organisations that develop stuff like that keep it to themselves.
If a supersonic round goes past you you hear the sonic boom as a crack then the noise from the muzzle as a bang.
I can’t think of a subsonic round that would be accurate at 150m (deLisle carbine?) but organisations that develop stuff like that keep it to themselves.