Jawz, the Wby Mk V would be my first choice to barrel an Edge on. If the Edge is a .300 Rum necked up or a .375 Rum necked down, the bolt face will work like it is. (Except you do need to chamfer the inside edge of the bolt lip a little). You don't have to work the rails. Just the box lips and follower. Wby has mag boxes and followers for .378 based cartridges that might work to feed the Edge. The .300 Wby box and follower probably won't without work. I like the mag length on the Mk V. It's 3.8" + or -.
The Mk V bolt is easy to open up if it does need it, like for the .338 x .378 Wby.
Good Hunting, Tom
Texas State Rifle Association Life Member
NRA Endowment Life Member
A big fast bullet will beat a little fast bullet every time
Last edited by specweldtom; 08-23-2008 at 07:45 AM.