Phoneman, Moved to Wy. in '85, and have taken quite a few pronghorns. With the exception of one with a .44 629 S&W, and one with a .308 Win.,all of the others have been with a .375(a H&H or an AI).Until the past season,all were taken with a 270 grn. I just started using the Barnes 250 TTSX,and took my little buck with it last season. No complaints with it's performance! memtb