77 SMK
Lake City Brass
XBR 8208 24.0 grain looks like the load
.005 taper crimp
2.250 OAL
FGMM primer
Sold a member here my 20” AR with a Douglas CLE barrel. It was also a hammer, just didn’t scratch that M12 Mod 0 itch. Bought the complete upper, I’m out of the building game.