I haven't found a .243 bullet that won't kill deer expeditiously yet. That would include the Sierra Gameking 85 gr. BTHP, 95gr. Hornady SST, 100 gr. Hornady interlock FB, 100 gr. Core-Lokt, 100 gr. Federal power shok, and 100 gr. Power Point. My .223 with plain old 55 gr. Hornady sp's kills the hell out of them so I ain't too worried about finding/using the absolute bestest .243 bullet.
Deer aren't hard to kill when you hit em in the ribs, that's for sure. I do like a bullet that will get through a shoulder on occasion though.
