The factory 6.5x68 - 93gr. and 127gr. are NOT suitable for Elk and Moose, imho. I think a 12" twist might work with a 120gr. TSX, but not sure. It probably will not work with a 130gr. TSX or any 140gr. bullets. I firmly believe the 6.5's need a long for calibre bullet, however the new prems muddy that water - Nosler has one, the Hornady GMX and the TSX by Barnes.
I find ANY ammo at $100.00 per 20 before or after shipping as to be astronomically expensive.