I used a 6mm as a kid hunting midwest whitetails.

Moved out West and got a .308 made and liked the power/recoil balance. Lots of ballistics info since the .308 is used by military types.

Got a 338Win Mag made and run 225 grain Fusion ammo through it. There is nothing in North America I would not hunt with the 338WM. I have taken pronghorn, deer, elk, goat and sheep. Will hunt for a Shiras moose this fall. Shot placement and getting close does wonders. I have no interest in 600 yard shots so flat-shooting is not a priority. I prefer a heavier bullet to buck the wind but want a reasonable recoil.

Works for me.

A computer once beat me at chess. I then won a kickboxing contest with the same computer. So, 1-1 to date.