Bugger,

I know this particular twist program works because I have tested it a lot against actual shooting, in barrels where I'd carefully measured the twist. Like Steelhead, I ain't guessing.

The program says that at 3300 feet the 1-12 twist of the .244 should stabilize a 100-grain Sierra GameKing--though not by much. How's that for verifying your shooting?

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck