OK thanks man. My bolt guns are no problem... but I get a lot more sound outta my 223 and Grendel. I figured a 6.5cm would be even more sound.View attachment 187507 Just finished mine. I didn't hear it unprotected, but got the feeling it was not hearing safe. I didn't get a chance to tune gas to the back.
7" can on a 24" barrel with +2 rifle length gas port.
I had a Griffin Explorr on it.