Sheister,
According to the SAMMI drawing, it does head space on the front of the belt. I always size fired belted cases to just bump the shoulder back .001" to ensure the loaded rounds will function and some will say I'm using the shoulder to head space. I do it that way to minimize case stretching. I was pretty sure the Weatherby round would clean up the Win Mag chamber. I was just curious if I could do it with the barrel on the action or if I would have to take it to a gunsmith.
Shoot straight,
Elk Country