Deer are easy to kill, shoot 'em in the heart, lungs, or CNS and you'll be punching tags regardless of the caliber or cartridge headstamp IF you use a bullet that is proper for the intended purpose.
Build it is whatever caliber and cartridge configuration that moves you. You don't need a cartridge with a large case capacity like a SAUM or WSM, and therefore more velocity potential, if you're limited to 200 yards.
Or so it seems to me.
