Thanks for the intel, gents. The 63s shoot lights out in my 225Win, but I've never been brave enough to try them on deer, due to the fact that Sierra labels them as a varmint bullet. But I keep reading here on the 'fire how well they work. Guess I'll screw up some courage and give 'em a shot.

Recently acquired an AR for hog eradication work. It does real well with both the 63s and the 65s. Sounds like I can use them interchangeably.