here was the first test that got me out of the ES/SD rabbit hole and destroyed my faith in the chronograph god. All rounds were loaded at the same time, weighed to .02 grain on a A&D, primers seated to minus .004 from the same sleeve. This load shot 195+ scores @800 yards in several F class matches.Or it will drive you bat shit crazy one
For targets that are a min of 2.5 MOA, I would go further and say that getting a load from .5MOA to anything less will make no difference in score. [Yeah, I know, there is that edge case way out there]The point being, the biggest gains don't come from the difference between a 0.25 MOA load versus a 0.5 MOA load, if the shooter is still a 5 MOA effect.
I believe that the ES of the previous two increments are skewing your point of view. Dis regard those numbers and judge point of impact on the target. You’ll find that once in tune a small volocity increase won’t change the poi.Circling back as I finally got to do the second round of testing. While I won't bore you with the results, I do have another question about some very confusing results...
How can an increase in powder yield a drop in velocity? I'm talking about three shots that are well under the previous two loads with 0.2 grains between each load?
Out of 10 different ladder tests (over the past two months) I had three clear examples of this effect. These were with three different bullets and two different powders, so not unique to one set of circumstances. One example (the most dramatic one) shown below.
What is going on here?
View attachment 1503597
That is just a typical example of under-sampling and the noise in ballistic testing.Circling back as I finally got to do the second round of testing. While I won't bore you with the results, I do have another question about some very confusing results...
How can an increase in powder yield a drop in velocity? I'm talking about three shots that are well under the previous two loads with 0.2 grains between each load?
Out of 10 different ladder tests (over the past two months) I had three clear examples of this effect. These were with three different bullets and two different powders, so not unique to one set of circumstances. One example (the most dramatic one) shown below.
What is going on here?
View attachment 1503597