When I hand cycle slowly the bolt will not fully closed when I let it go home empty the bolt doesn't fully rotate thst last bit then when I pull trigger hammer pushes bolt fully home that's where I get click and no bang. with full speed it will close fully. Issue happend before and after inertia spring broke but I'm replacing it today with factory stoeger spring with correct coils to see if that eliminates it. Could be the bolt is bouncing open st full speed I eilll have to shoot some rounds to see if that is the case