I hunt with a M77 MkII in 257 Bob. Full length bedded, trigger slicked up and breaking around 2.75#, by Roger Ferrell.
Using MuleDeer's load of 46gr. of H4350 and the 100gr. TSX in Rem. brass, she generally puts 3 into around a .600" group at 100. And those TSX's work perfect. I've killed roughly a dozen or so deer with that load at anywhere from 10yds to 200 yds. The 2 that didn't drop where they stood ran maybe 80 yds combined. I pulled both those shots, just behind the shoulder. If I do my part and center-punch the shoulders, it's a thud and lights out. No tracking required.
Good luck and enjoy. I love mine.
