8208XBR is probably the best .223 powder for anything in the 68 gr range and up. It isn't the best at metering like a ball powder, but it meters VERY good compared to Varget and RL15. I get around .1 gr variance on my Hornady LNL AP thrower. The node I worked to is about .3-.4 gr wide so it works quite well. In my AR, I'm getting more speed with 8208XBR than Varget, and I also get better temperature stability than BL(C)-2, TAC, or H335.
