Forgive me for the new guys questions here. I'm new to reloading for accuracy. I used to mix headstamps and load hunting ammo, as long as it was MOA I was happy, and the coyotes didn't seem to care. Now, I have this new found interest in the Factory Hunter class for score they are shooting at the Benchrest Club of St. Louis. I am planning on shooting my .223 Savage. So in preparation I have tumbled nearly all the brass I have. (1 gallon zip-loc stuffed full) SO here I am at the coffee table sorting out this brass by head stamp. When the question occurred to me. I wonder which of these will give me the best results. I figure there really isn't a cut and dry correct answer to this question without testing, but I'm just looking for opinions here hoping to save some headache. So far I have PMC, R-P, Frontier, FC, LC, Win, and some that has unknown marking with 5.56. There is about twice as much PMC as anything else. Is PMC quality brass?

So what is you favorite headstamp?