I’m getting ready to rebarrel a weatherby mk V varmintmaster (224WM) to one of the 6mm AR cartridges. 6x6.8SPC probably. Possibly 6 Hagar.
The 224 rim (spec) is .428. The 30 Remington/SPC is .422 or 420 dep on where you look.
If I go with one of the Grendel group, (@.440 head) I’ll need to open the bolt face.
But am thinking that amount of difference for the SPC based cartridges shouldn’t be a problem. Would be nice not to mess with the bolt face & use the spc based caliber.
Extractor & ejector should work fine.
Any of you smiths have any thoughts on how critical the bolt face dimensions would be in this case?
Case head support should be a non issue.
Thx
