If you aren't worried about the pelts, most any good bullet will do...

For long range, try the Federal Premium 85gr HPBT, its very accurate in most .243s that I have tried it in and sighted in 2 1/2 high at 100, you should be about 2 1/2 to 3 inches low at 300...

The 85 grain and the 100 grain CoreLokts work well on deer, I've killed 30 or so with the 85 grain and about 80 or so with the CoreLokts...On high shoulder shots they drop, on center lung shots they run about 30-60 yards.