I have limited experience with the raptor 10 I have, it's a .375 can with the reflex, I think it's 3", may be 4", i'm too lazy to turn around a measure it, i'm on my lunch break.
When I first brought it home, I stuck it on my 8 twist 308 with subs, and it's very noticeably quieter than my silencerco harvester I normally have on it, and the harvester is the quietest of all the others I have. The extra volume really helps the sound reduction. I haven't done any accuracy testing, or really anything other than listened to it for a few shots, giggled, and then said to myself I need to get off my ass and get the 375 raptor rifle build started....which I still haven't started...damnit.