hoping for some input here, working on a jc higgins model 50 (FN mauser action)with the 2 piece trigger and swing up safety. was giving to me by my wifes grandfather to build a custom.

went and shot it, first 4 shot at 100 yds were just over 3/8s inch off sandbags. looking at keeping it stock except the safety will not engage now after i shot it. i have striped and cleaned the bolt and reassembled. this was after it stopped working. it looks as if the cocking piece is not sitting back far enough to let the safety engage. any ideas?

will replacing the trigger to a timney help this so i can keep the swing safety? not sure if the 2 piece trigger is not holding the cocking piece back far enough so the safety can block the piece.

thanks in advance