For a rifle cartridge. I suppose if I were hunting with a guide that was packing a larger caliber in case of a Brownie, I'd probably get a nice, light 243. I killed lots of deer and antelope with one in MT years ago. I think it'd be good sheep medicine with a 100gr. Nosler. But, since I'm a resident sheep hunter I pack a 325wsm shooting 200gr Accubonds at 2950fps. Makes for a light gun (7lbs) with the short action Kimber with ballistics of the Ol' Remington 8mm Magnum in case ol brownie comes along univited.