I’m running 57.5 grs of 4831sc with ELDX 175 through a 20” proof carbon around 2710 fps. seating .020 off in my 7saum. I’ve tried H1000 up to 63grs at 2750. Both powders have had good sd however I’m struggling to get better than 1” MOA accuracy.
I will be testing N570 with 140gr Berger's in my 6.5 PRC. My barrel is 26", and I'm looking forward to seeing what the slow burning powder will do with the medium weight bullets.
I’m running 57.5 grs of 4831sc with ELDX 175 through a 20” proof carbon around 2710 fps. seating .020 off in my 7saum. I’ve tried H1000 up to 63grs at 2750. Both powders have had good sd however I’m struggling to get better than 1” MOA accuracy.
Try seating a little deeper. I hear some folks talking about the ELD-X liking the .030” -.050” jump range. I’m putting some together tomorrow and starting at .030” for a 7PRC that came in this week.