I used the Hornady .257 117 gr SST, my rifle has a 1/10 twist. The 117 gr SST chrono's at 2,660 out of my barrel using a compressed charge of H-4831sc.
The Hornady 117 gr round nose also shoots sub MOA in my rifle and to the same point of impact. I intend to use this round nose bullet in the late season.
