A little off topic, but have you tested D8208 in your 223? I’ve been experimenting with it and so far I’m quite pleased.
I’ve only tested up to 68gn projectiles with excellent results. It uses a reduced powder charge over Varget and leaves lots of room in the case.
I've run thousands of 75gr BTHPs with D8208BR in my .223 trainer barrel. It's definitely faster than IMR8208XBR but it gives me good speed and accuracy. 22.7gr in Rem cases with Hornady 75gr BTHPs loaded at 1.950" BTO (too long for AR mags) gives me 2925ish fps out of a 26" pipe. Same speed I get with 25.0gr of Varget. I couldn't get the same speed in a .308 without pressure with the D8208BR that I could with Varget though.




















































