they are not good rifles in my opinion. krall apparently rushed the barrels to meet demands and them all up . i also had a .177, the barrel had that much oil in im surprised america didnt invade my kitchen , bang on at 10-20 yards but after that like a shot gun, tried 7 different pellets and they were all utter gash . reading about them on the kral owners facebook page, seems about %90 of people with the puncher breaker .177 have had to take it back or returned it like i had to, got an rm8 and that is amazing!