106 taps and 115 dtacsNothing yet. Been sidetracked by a 300WSM build that's on the docket for a cow elk hunt in January. I'll get back on the 6-284 once I draw a decent tag for next year.
I doubt I'll mess with it in this rifle. Retumbo is giving me good velocity, good fill, and it burns clean. I've got a pile of it, and don't see any need to fool with N570 in this rifle.
What bullet are you getting 2900fps with the 6XC?