I only shot like5 boxes out of it this year and last...It was factory rem 80 sp ammo..Furtherest I scrambled a chucks brainwas 283 yrds with that load..Actually that is the furtherest I have ever shot anything other than a doe that was on the other side of a strip mine at 378 yrds with a 7mmRM..But a chucks head is about the size of a soft ball...I don't know if this would be the right gr. for yotes or not..But it does lay the chucks out...It seams to shoot better if I don't clean the barrel ..When I first got it I shot box out of it...Cleaned it and it was off a bit when we went back out to the range again..After about 6 shots thru it,it started to settle down and the pattern tightened up on it again..I didn't clean it out this year after shooting each time and it seams the cleaning of it did loosein it up and thru it off a bit..Not enough to be drastic at100yrdsbut enough for 200 yrds for me to know the difference after cleaning it...