Ok, No B.S.!, just Received some jsb’s from a supplier I’ve used many times 18.1 jumbo heavies now I have a RW hp that shoots these extremely well!, but had run out so ordered some more because I promised to send some with gun, so went to shoot a few to confirm accuracy, gun wouldn’t group for nothing even @ 30yds which it normally puts 10 through the same hole “really” so started to panic first thought gun... thought lets chrono! 20fps+ slower? Ok this gun has been spot on & extremely consistent w/velocity & POI... so went to pellet gage, READY-5.57+ (gage only goes to 5.57!) so they are at least 5.58 probably larger? I know this story was long and drawn out but had to preface it first! If your still reading has anyone else seen this? and this particular machine die must be at the end of its life cycle...I HOPE!