Add a muzzle brake so you can remove it if either you hunt w/o ear protection, like when you deer or coyote hunt. Magnaport is permanent.....
What bullet weight would you use for vermints...err varmints? Are you wanting to excersize your weatherby for practice, or you don't have a dedicated small caliber for small game? I ask as I expect to get a good load for my 300 wby like I did my son's now-his 7 rem mag, and use it solely for deer/ elk hunts 1x a year.
Way too many better, cheaper, faster(?) calibers that don't let the next county know I am there, burn less powder, do less throat erosion, recoil less and may even let me see the impact..... 50 grn, 60 grn, 75 grn... much less recoil than 125 gn 30 cal's at "mach Weatherby".
22-250, 240 Wby, 243, 25-06, 257 Wby......
Just food for thought,
Allen