I run factory mk316 mod o, fgmm 168, fgmm 175, m118lr as well as 150 fmj ball from federal and occasionally, 7.62x51 SOST.
I have no issues with 2 Lmt 308's, kac ecc LWRC repr and yes, a gap 10 in 308. I did however suspend a few boxes of my main use ammo to GAP and they made sure said ammo...