06-26-2020, 01:05 AM
Klem, your help thinking through these concepts is outstanding, thanks! I really like this part:
"If you want to save bullets and time you could fire only one round at the lower levels of the work-up but when you get closer to max fire a few more at a target to see how they group. We all prefer the best groups at the highest velocity so concentrating closer to max makes sense. Say 20 rds, single shots for the first five increments and three round groups for the last five increments. Then depending on what you see on the target take it from there. If all groups are tight it's an easy decision. If not, then you can load up some more to check or settle on the best at the time and hope it's repeatable. "
I was starting on my own to do exactly what you have stated.
Now something sort of related I would like some sorting out of.
Gun magazines often use as a testing protocol an average of five, five shot groups as an accuracy standard for their evaluation of a gun's accuracy with a brand of ammo. So if I had a load for my rifle that gave sub 1 moa with a load at 100 yard after repeated tests and say it still gets 1 moa at 300 yards will it stay one moa at 1000 yards? (no wind in this thought experiment).
Now for the tricky part, is the velocity SD baked in the cake so to speak? Good SD, bad SD, in between plus harmonics all combine and don't matter. Is a good SD 1 moa load just as accurate at long range as bad SD 1 moa load?
"If you want to save bullets and time you could fire only one round at the lower levels of the work-up but when you get closer to max fire a few more at a target to see how they group. We all prefer the best groups at the highest velocity so concentrating closer to max makes sense. Say 20 rds, single shots for the first five increments and three round groups for the last five increments. Then depending on what you see on the target take it from there. If all groups are tight it's an easy decision. If not, then you can load up some more to check or settle on the best at the time and hope it's repeatable. "
I was starting on my own to do exactly what you have stated.
Now something sort of related I would like some sorting out of.
Gun magazines often use as a testing protocol an average of five, five shot groups as an accuracy standard for their evaluation of a gun's accuracy with a brand of ammo. So if I had a load for my rifle that gave sub 1 moa with a load at 100 yard after repeated tests and say it still gets 1 moa at 300 yards will it stay one moa at 1000 yards? (no wind in this thought experiment).
Now for the tricky part, is the velocity SD baked in the cake so to speak? Good SD, bad SD, in between plus harmonics all combine and don't matter. Is a good SD 1 moa load just as accurate at long range as bad SD 1 moa load?