I'd make sure I had some small base dies. I'm pretty sure most of their .308 brass was run through MG's. But I know folks who do that and have had success.
I'm paying $20.00 / 100 for all that I don't scrounge. Doesn't seem to be any problem with my reloads I can't more honestly blame on the work of the shooter/reloader!
Once it's full length resized, what difference does it make beyond the very real possibility that you can't really be sure it's once fired if you didn't once fire it!