@@timmy4539 if it's a lg hole you can adjust a hammer spring you go in it shoots harder but uses more air per shot you back it out not as hard of a shooter but uses less air per shot
Beeman QB Chief in 22 cal. the oil ring kit my bolt has oil rings bad any one have a link where to get these at . i have looked and have not found out any ring size these are . plz help if anyone knows the size