Would you add powder or monkey with seating depth on this?
I'll post a pic later. I was at range this a.m. with the new 6.5-284, 140 Berger VLDs, Retumbo, Lapua, and 210M loads. I started at 54 grains and worked up to 57. My rifle peaks faster than most but I can still try 57.5 and 58 grains.
Anyway, the 55 grain through the 56.5 grain charge groups were all in the half inch or less size. The 56.0 grain charge produced a nice 1/4 minute 3 shot group.
Now, I think I can easily reproduce that 56.0 grain charge group and if so I can stop there. However, I could be sacrificing up to 2 grains of powder, maybe more. The H4831SC groups turned out to be all about an inch so I switched powder to Retumbo and I'm glad I did.
Would you find out the max powder charge of Retumbo, then work with some loads at that charge and down a grain, grain and a half and test a few seating depths, or would you confirm the 56.0 charge and just run with that?
The VLDs are seated 0.010 off the lands.