I just got my rifle put together and getting ready for my next step, reloading. However, there is a small issue. My dies will not be available until the end of the month. I have decapped and swaged 500 pieces of Lake City brass. I have about 130 pieces of this brass cut just above the top of the shoulder. IIR the brass is 40.30 mm or somewhere around there. So my question is, can I just trim the brass to 40 mm and use the cream of wheat method to fire form my brass. Would i need to open the case mouth to at least .308 before fire forming?
Thanks, guess i was in a rush to shoot my new rifle. Which i did, to sight in my red dot. pretty much took 4 rounds to sight it in but I ended up shooting one entire box of the nosler 125 bt's. Rifle is very smooth shooting. Kept one box to hunt with. I found out yesterday while on your site, the dies are back in stock. They should be here Friday. I will just prep the brass i have (about 3000 pieces) and wait for the dies to get here.