So, I put a threaded 16 inch heavy barrel on my Ruger 10/22 for use with my TAC65 Suppressor. I have used this suppressor on a Walther P22 and a 1911 w/Conversion kit and had awesome results. When I fire the 10/22 with the suppressor, it is horribly loud. The firearm seems quiter without the suppressor than with it. I have only ever shot .22LR and .45ACP through suppressors, and it was always through handguns. The only thing I can think is that the extra barrel length is causing the rounds to go supersonic, and that I am hearing a ballistic crack. Would sub-sonic .22 rounds solve my problem? What do you think?