View attachment 1071225
Pondering,
One thing (besides primer weight making a difference) that really stands out in this test, is the velocity difference between the two pieces of brass. I noticed the average velocity of brass #1 was exactly 25 fps slower than the average velocity of brass #2 in both the light and heavy primer tests. I consider this to be significant in the quest for better (smaller) extreme spreads in my hand loads.
I plan to spend some time evaluating the two pieces of brass and doing another test based on what I find (likely nothing new to the long range crowd).
Question,
What methods of sorting brass has proved to be most beneficial as it relates to reducing extreme spread?
1) Volume Sorting using;
A) H20
B) Ball powder
2) Vertical on target
3) velocity on chron
4) Case weight
5) ?????
I assume I should use;
1)brass that has been fire-formed to the chamber?
2)brass that has been uniformed externally?
3) what else???
I know ES is not the holy grail of long range accuracy, however having an ES of over 20 fps based on brass alone cannot help.
I will use this information to frame up the next test.
Thanks again
CW