TX mountain hunter
Well-Known Member
After getting no response and over 50 views in another location, I thought I'd try again here...
Would there be any reason a .420 size hornady headspace gauge attachment would not work on a 30-378? .420 appears to be as high as they go from what I can tell. This cartridge doesn't appear to be listed in the charts..
Thanks
Would there be any reason a .420 size hornady headspace gauge attachment would not work on a 30-378? .420 appears to be as high as they go from what I can tell. This cartridge doesn't appear to be listed in the charts..
Thanks
