Grump
Member
Title says it all. I've searched the archives and Googled it and looked at the most promising hits.
Found recommendations for 26.1 up to 28.5 (claimed to be a quote from an Army ammo specs manual). The jug I have lists 26.1 as being for the M855 63-grain bullet, with that LOOONNNG bearing surface.
As long as accuracy is okay and pressure signs are good, my GI spec velocity from a 20-inch AR is 3200 fps at 10 feet instrument midpoint, right?
Thanks!
Found recommendations for 26.1 up to 28.5 (claimed to be a quote from an Army ammo specs manual). The jug I have lists 26.1 as being for the M855 63-grain bullet, with that LOOONNNG bearing surface.
As long as accuracy is okay and pressure signs are good, my GI spec velocity from a 20-inch AR is 3200 fps at 10 feet instrument midpoint, right?
Thanks!