Re: 7 mag wby
Is it a new Mark V or way way old? Some of the early Wbys had very slow twists. I think any gun built in the last thirty years will have a 1-10.
What kind of animals do you want to shoot? How far do you want to shoot. Fed 215's or Fed 215GM, IMR
4350 is good, have used H4831, Currently using RL 22.
I have shot Speer 115,145 Hornady 120,139, 154, 162, Nosler, 140, 160, 175. Sierra 168 and 175, Norma ???
The Smokin Fur Rifle Club