12-23-2021, 02:04 PM
I'd reckon CFE is a bit too slow for 70's. I tried some CFE with 55s for fireforming based off of Hodgdon's 6mm PPC data a while back and had signs of pressure at relatively low velocities. It'll work, but if velocity is what your after, burn rates in the Benchmark / XBR realm are your best bets.
#FJB