I also “dupe” that MK316 load. Fed brass, Fed 210 or GM210M, 175 MK’s. I just rounded up to 42 IMR4064. The current Federal GM ammo , GM308M2, 175 MK’s,does about 20’ per second more than my hand loads. Not sure what powder they are using ,,,some kind of “blend” I’m guessing.


Terry