Re: Sako TRG-22 / USO SN-3 / AAC 762SDN6 Suppressor
It's pretty quiet. Not as quiet as a 762SD, but not too far off either. I still wear earpro most of the time since the sonic crack of a supersonic round is still above the OSHA "hearing safe" level of 140db...but after 20-30rnds your ears still aren't ringing.