The 10mm is also legal. Buffalo Bore ammo is also making ammo that is within qualifications for the .357 to be a big game handgun.

I always carry a handgun hunting now. I had an experience a few years back that included a mountain lion. I was archery hunting, and had left my belt knife and handgun in the truck. I was about a hundred yards from the truck when I ran into a mountain lion on a fresh kill. All I had were mechanical broad heads.