There are a few sneaky big guns. I went with .308 over .30-06 so I can take advantage of off the shelf subs. The sonic crack from the bullet can only be eliminated one way...they have to exit barrel at less than 1050fps. 9, .45, .38 lend themselves easily as they are all subsonic in basic form unless you get +P etc. 22lr from pistols will be subsonic save for maybe stangers and velocitor type loads. Welcome to the Fold. You can probably shoot anything you have that will fit through the hole of the Nosler.
