FORMING 358 MGP CASES

1. You can size from 6.8 to .358 but i recommend a LEE 308 Win sizing die to less work harden the brass. 


2. Run the case through the 358 MGP sizing die ( I ONLY USE REDDING IMPERIAL SIZING DIE WAX)  a little goes a long way .


3. Chamfer and Deburr the case mouth.


*(Do not trim the case until after step 5)*


4. Fireform


5.Resize with the 358 MGP sizing Die.


6. Trim to 1.630" and you're Done.