by in2anity » 15 Sep 2020, 9:18 pm
Call it harmonics, if you want. Although in some circles, harmonics more refers to the identification of “nodes” often half or whole grain(s) apart (particularly for that volume of powder), where the gun has a tendency to group, measured over a larger sample size. The data up above is not that. The mere fact that you have two different outcomes from the same 53gr load indicates you have more work to do.
If you’re set on that general 53gr area, I’d run the exact same test, all over again. I bet the outcome is different, but basically the same, and that is, around 53gr of the win760 under chosen pill, averages (give or take) 2moa (or a bit less, if you take the other hidden variables out, like shooter error and perhaps a touch of windage). It is what it is.
BTW in my books that’s really not terrible, depending on your perspective. For a non-competition sporter rifle, to me that’s adequate. You're doing pretty well to consistently group under 2moa from any (and all) field positions, out in the sticks. I'd call that an adequate hunting accuracy,
At what point does lack of maintenance become patina?