Speaking of temperature sensitive powders

[grayfox]

I------ don't think so for the 6Arc. It's at least 1.5 grs shy of the capacity of the 6 AR, right? And R17 works well for 140-ish bullets in the 6.5 Creed, some 130's too for me. I'd think too slow for our uses here.
Besides it's not known for temp stability... not like the H4350 standards.
Since H4895 wasn't quite the choice (so far) maybe look at I-4895.

I'm going to look for some PP2000 tomorrow.