RE: Which bullet for .243Win?
Add my name to the list of those favoring the 85 gr. HPBT Sierra. Among the bullets you listed, though; the Hornady Interlock is probably the toughest of the lot. Another good bullet is the 100 gr. Sierra Pro Hunter (flat base). It is a tougher bullet than the Gameking. I have used it on elk with good results (rib shots only).