I was told to clean it with lighter fluid then use air to clean that out . I cleaned it 3 times that way, it would start to work correct, put the barrel and trigger back in the stock after firing the gun 2 times right back were I started. Took it back apart and watched the trigger work when closing the bolt I foung out that moving the trigger back made it move and would let it recock every time. Shot a card of 25 bullets that way no problem just as long as you remember to move the trigger back after every shot.