is there a universal pet load so to speak for M1A? 11 twist barrel you know a load that just seems to work in most of them that you tried in. picked one up today and will be the first time I've loaded for one and just finding a starting point. powders at first pop in my mind 4064, varget, 8208, 748 .. and like a 155 Sierra Palma match bullet. Sierra 168 mk or a Hornady 168 match.. once people who's loaded for these think ?