For what its worth I just last night finished weighing 3 boxes of Hornady .490 balls. When I was done. I had separate boxes that had some that weighed
176.0 to 176.9
177.0 to 177.9
178.0 to 178.9
and a half a box that weighed
174.8 to 175.8 and 180 to 180.2
Now this tells me that Hornady must have several machines swaging these things with swaging dies that that are worn out to different degrees.
So I separated them to slightly less than a grain deviation. Actually each box was closer to the lower end of each number e.g. 176.1 to 176.4 for example.
So when you have a good group and for some reason one of your shots is way out in left field and you were sure of the sight picture it was probably one of those that weighed 5 grains less than the other 4 in your group.
I think I'll melt all the ones down in the 174 175 and 180 range.
Rant over
Bob
176.0 to 176.9
177.0 to 177.9
178.0 to 178.9
and a half a box that weighed
174.8 to 175.8 and 180 to 180.2
Now this tells me that Hornady must have several machines swaging these things with swaging dies that that are worn out to different degrees.
So I separated them to slightly less than a grain deviation. Actually each box was closer to the lower end of each number e.g. 176.1 to 176.4 for example.
So when you have a good group and for some reason one of your shots is way out in left field and you were sure of the sight picture it was probably one of those that weighed 5 grains less than the other 4 in your group.
I think I'll melt all the ones down in the 174 175 and 180 range.
Rant over
Bob