08-17-2020, 02:59 AM
(This post was last modified: 08-17-2020, 03:00 AM by Pig_Popper.)
The objective was to get 2850 fps - DIDN'T ACHIEVE THE OBJECTIVE.
***Note there is NO load data available for this combo of bullet, powder, and primer - I essentially worked off of 6mm PPC data and extrapolated the hell out of things to derive starting loads.
I am familiar with 90 grain loads and velocities in 6.8 SPC and 6.5 Grendel - so using those as a ceiling I aimed for a slightly less velocity out of the smaller 6mm ARC case.
At this point I intend to refine the load and await published data to see if I am close to safe loadings.
Velocity Readings:
26.0 grains - 2546 / 2540 / 2575 FPS
26.5 grains - 2574 / 2573 / 2555 FPS
270. grains - 2650 / 2633 / 2604 FPS
27.5 grains - 2669 / 2684 / 2665 FPS
28.0 grains - 2734 / 2730 / 2709 FPS
28.5 grains - 2793 / error / 2795 FPS
29.0 grains - 2801 / 2814 / 2796 FPS