Originally Posted by
togor
I do this:
1. Rough cut about 3/16" off the .30-06 case neck.
2. Anneal the area around the shoulder with my plumbing torch.
3. Lube the cases. A heavy lube seems better than One Shot for this.
4. Put my 8x57 sizing die in the press. I use a feeler gauge between the bottom of the die and the top of the shell holder to increase distance from case head to the shoulder.
5. Trim with the length adjusted to include feeler gauge blade of choice.
Beyond that just load and shoot normally. A G-43 being a hard to replace item my loads are on the light end, and I put a restrictor in the gas piston throat (a steel blind rivet works great).
I'm probably doing it wrong but when I pull the trigger, the cases aren't asked to stretch much during obturation.