Hi have a hw 77 I’m having problems cock gun have to really push cocking leave really hard for trigger to engage safety catch will sometimes engage and other times will not I have 2 hw77 and I swapped triggers over so know there is something wrong with trigger trigger seams fine working it by hand off gun I have also tried cocking gun out of stock and it still dose the same have tried to adjust both screws on trigger but still dose the same can any one help please