RE: Advise on a .243
I've used the 100gr Remington CoreLokt on about 85 deer, longest shot about 250 yards...For longer shots than that, I like the Federal Premium
85gr HPBT Sierra GameKing...Other bullets that I have tried that do well are the Hornady Custom 100gr and the Federal Premium 100gr SPBT
Sierra GameKing...Any of these will work, just see which one your gun groups the best...