Well, they aren't much help on normal game but I'm betting that guys who hunt buffalo and scrub bull in the Northern Territory here in Oz and use .303(although that crowd is getting smaller) could quite happily use them. The other goer is to use them on dangerous game if you have what's been called a ".303 Winchester Magnum" i.e. a P14 or M17 rechambered to .300 Win Mag but using the .311 cal bullets. I daresay it'd also be an interesting bullet for a .303 Epps.