This is what I'm finding as well. Except... has anybody had any experience with Sully's Arms Suppressors? Their website used to post extremely low dB readings, but I just went back again and now all the readings show "TBA dB."
Sully's Arms suppressors manufacturers high quality suppressors for firearms including the AR, .308 and 30/30. We build some of the quietest and toughest silencers on the market today.
www.sullysarms.com
I'm really torn between their products and the TBAC Ultra 338 Gen 2.