+1 to What Cayugad said re: Hornady vs Speer in terms of accuracy.

I shoot a Knight Elite and T/C Omega. My buddy shoots the Encore. We found:

1. 300 Hornady XTP's (.452)- very accurate up to 100 yds..good penetration on deer.. good blood trail
2.300 Speer Gold Dot (also .452)- pretty goodgroups.
3. 270 Speer Gold Dot (.429) - groups open up after 50 yds.

My favorite & most accurateout of the Knight is the Barnes 250Expander and the 285 Spitfire.