Not only that, but they are raised in the middle (anvil), it would have to be milled down, then drilled. Even if the primers did fit, that would be enough to put me off. Just scrap it and get yourself some new 308 cases. They are some of the cheapest available. If you want to really scrimp on brass, get military once fired brass, they sell it in different places on the Web. Personally I experimented with military cases in 223 and have just decided to go civilian all the way, just is not worth it to me to save a few bucks a hundred.