I had to make some brass for a reloading article on the .30 Rem AR today.
I fired up a box of 125 gr. Remington FMC (2o rounds). This is the least expensive .30 Rem AR ammo you can buy. Seven shots were fired at one target at 100 yards from a sandbag rest. The other 13 rounds were fired off hand at other targets.
Here is that 100 yard target. There are five shots in one hole.