Does any one use Accurate 1680 in .223 or 5.56? Also interested in using it in 7.62x39. I have some data on QuickLoad, and it fits the criterion that I want in terms of being in acceptable pressure ranges, and acceptable case capacity/case fill----above 85%. I can't find any data in any of the four Loading Manuals that I have. I wrote to Accurate, and got a pat answer, "attached are our most recent data sheets." There are almost no listings period for 1680, and none in .223 or 7.62x39. Yet, their website blurb about the powder says it is good for some handguns and also for some small rifle cases---I think it even listed 7.62x39 in the blurb.
Do any of you use this powder in these applications, and if so, would you care to share some starting loads----I will check them against my QuickLoad, and use proper development procedures---?