My Crosman break barrel NP1 loves RWS super points 8.4-5 gr In my experience the 1000fps like a mid range weight 7.9-8.5gr but have had luck with 10 +/- gr, but limits the range Like every one else says, each gun is going to like some thing different.....I like Domed,Points, and Hallow Points Seem to get the best accuracy with Super Points, but the others listed are pretty close in accuracy.