General silencer discussion. If you want to talk about a specific silenced rifle or pistol, it is best to do that in the rifle or pistol section for that brand.
I have a .30 cal muzzle can, and I'm thinking of doing up a 300 Whisper. I can't decide between a bolt gun or an AR15 upper. I'm leaning toward an upper by http://www.ar15barrels.com. I'm thinking of mostly shooting heavy subsonics with pretty fast powders like AA#5, but I'm not sure if they will cycle the action.
It was a Remington 700 style gun with a one-off suppressor. Seemed very quite to me. A lot quieter than the M16 I was shooting with an XXX Warrior the same day.