I shoot 88g. weighed through my Knight .52 LRH and it shoots great and matches up perfectly with the drop compensator on my Burris Euro Diamond scope with the 350g. expander out to 250yds. I havent shot the 300yd mark yet bu t im sure it would be close as all the others are almost exact. sighted in at 100 the next mark is 150, then 200, then 250, it makes for a great combo. Ive only shot the CCI209M primers that they recommend using, Ive heard there is a good chance of hang fires with other primers