Gun is old ATS
I dont know what model ( 2x,3x, ?? ) I turned pressure up high, 80 lb+ thinking it would deform the rivet without "pecking" at a high frequency, but the the throttle valve is closed and it still hammers fast and I think is hardening the rivet in the process.
RV-3B flying w/ carb & Pmags
RV-4 fastback w/ Superior EXP 0360 /AFP & CPI