If I am to reload anything for my .308 w/20" bbl and 1-12 twist I will have to use either CCI-200, CCI-250 (mag) or Win LR primers-as that is the only thing I can/have found available for the last 5-6 months. Please don't suggest a place to buy-I keep checking most all sites/gun shops/ranges. My question is would I be wasting my time trying to make accurate loads with these primers. I have 4064, and 4320 powder, Hornady brass, 168 match Sierras ,Hormady A-max, Noslers, Bergers. If those experienced reloaders here know that trying to assemble accurate loads with the primers I have is futile-then I will just keep shooting factory Federal 168 SMK's in the future until I can find some Federal, RWS, BR,or maybe even Tula primers. Thanks for any help/replies.