My load was a charge of around 36gr of h380 at a 100 yards it was a one hole wonder never tried another powder after that load. I'm sure varget will work just fine those 52gr ncc are impressive.
I have a SII big sky 6x24 on my 6mm br and a friend has a SIII big sky 8x32 LR they both have great glass I think you would be very happy with a sightron.
Your first step is good then inspect your brass make run them through the expander ball to make sure the mouths are round.
Then chamfer and when seating you want to jam .005 or jump not .001 the length of the ogive could be off enough some could jam and some might not. You need to fire form...
As of right now my largest caliber is 30 (300 rum) yep I want something bigger do I need it nope but want is more important when it comes to guns :mrgreen: .I'm thinking this spring when the smoke clears from Christmas I might pull the trigger on a new build or buy a factory rifle.