Im stumped so to the experts.
Rem 700 in 223, 20 inch 1/9 twist
The left 10 cases are GFL (fiocchi) brass with CCI 400 primers
24 grains of varget
77 SMK (seated .025) off the lands
I have another rem 700 223 that craters primers with factory ammo, and this one does too. But I had a...