Actually as I've read several books on Big Game Hunting and am myself a hunter and trail guide in the Colorado rockies know a bit about the type

I was going to remind that no Full autos and I have trouble with a silencer as I believe it would encourage it's use by everybody and yes I know they are used by some game hunters but frankly don't fit the mold of the true Big Game Man. No he's the type that uses a weapon barely large enough to take down his chosen prey.
As The Man who Wrote Death Stalks the Long Grass said. "Any One can take Down a cape buffalo at 400 yards with an Express 
Oh and we're all starting in Kansas