I am new to reloading so I have a rookie question. Federal makes some XM80C 7.62x51 that shoot fairly well out of my 308. A box of 20 is $17. I was wondering if I could use this brass for reloading. I figure I will have to lower my current powder charge due to the smaller inside demsions. For the price and plinking practice this brass is real cheap. So what say you.