Their .223 data for the 85gr Match Burner is:
2.260" COAL, 24" Barrel
Winchester 748
min 20.5gr 2275fps
max 22.8gr 2543fps
RL15
min 19.4gr 2285fps
max 21.6gr 2477fps
I don't have anything for 5.56, sorry.
But maybe those can work as a starting point?
Bookmarks