Using a shorter barrel for my CBs and they are a little bit louder for it, as compared to a 26" barrel, but still less than spring gun noise. 20" barrel FWIW. In that rig the BB/CB caps are seemingly louder than CB shorts and I have no explanation for that. However, at the maximum range I've ever put them to paper, about 30', they shoot bugholes. Wholly unexpected. They smell funny after firing. The BB caps are death on squirrel in the boiler room, the CBs too but they don't fold up quite as quick for me with that round. Added bonus I suppose, they shoot to same POI as the CB shorts....makes life easy.
