I've killed 35-40 deer with those Federal Premium 85gr Sierra GameKing HPBT...Sight them in 2 1/2 high at 100 yards and you'll be about 3 inches low at 300...It's a great bean field bullet...
I'd also try the 100gr Remington Corelokts...I've killed 125 or so with them, out to 300...They'll end up about 5-6 inches low with the same sight in as above...