Originally Posted by
nicholst55
Once you sort out your possible lube issues, try this: take a .30-06 FL sizing die and remove the decapping/expanding spindle. Lube your .308 case and run it into the .30-06 die. Then try running it into the .308 FL die. Stop if you feel any undue resistance, remove, relube, and rotate 180 degrees and try again. Repeat as needed until you either succeed in sizing it completely, or else stick a case. Several experienced High Power shooters that I know recommend this procedure when resizing USGI machinegun-fired brass.
Depending on how much work is required to size this brass and the quantity of brass that you have, you must decide if the time and effort required are worthwhile. Only you can answer that question.