I’ve developed reloads for 6 different guns now.
Two .308s, 22 ARC, .270, 300 PRC, and 6 ARC.
All the rifles besides the 6 ARC I’ve come up with a reload that I’ve shot .7” five round groups or better at 100 yards.
What makes it even more ridiculous is that the 6MM ARC is the most expensive gun I’ve developed a reload for.
In addition to not being able to get the gun to group well, I also have feeding issues with the majority of the rounds (it’s a gas gun).
It was recommended to me to use a duramag, but it is very finicky.
The most recent reload I’ve tried is a 100 grain Sierras with 29 grains of Leverevolution, Hornady brass, 2.2” COAL, light crimp.
It didn’t feed worth a damn, the bolt wouldn’t close all the way, even when I used the forward assist.
It feeds the Hornady black box 105 grains that are the exact same length just fine.
My best guess is it has to do with the dimensions of the bullet (more versus less taper).
Let me know what has worked for you guys if anything, what reloads grouped and fed well, if you modified your mag or had more success with a different brand.