Yes I have, and so far so good. I've not done a lot of shooting with open sites so I have some practicing to do. (No optics in CO during ML season) But I was able to shoot about 3inch groups at 50 yds with 348gr PowerBelt aerotips over 100gr 777. I think this gun will shoot better, but I need to spend some time at the range working on a consistent site picture. I'll also be trying Hornady 385 great plains conicals as well as the Powerbelt 405 Gr areotips, and if I can find them or order them the Parker Hydra-Con conicals. I'll probably back off to 80 or 85 grains of 777 as well.