What to tune first: seating depth or powder charge? - Page 2

Yosemite Steve · January 21, 2018, 11:36 PM

Unclenick, that was a good read on the ladder testing by Randolph Constantine.

I think my next experiment will be to shoot a known happy load at different seating depths from a .030" jam down to a .150" jump to see how it effects velocity and to find the best group. I am very curious to see what happens. I think I will do this test with any other powder I try as well to see if it has an effect on seating depth as well as velocity nodes. So far I have sweet spots at same velocities with different powders. I must eliminate variables to be conclusive.

January 21, 2018, 11:36 PM	#26
Yosemite Steve Senior Member Join Date: December 27, 2017 Posts: 460	Unclenick, that was a good read on the ladder testing by Randolph Constantine. I think my next experiment will be to shoot a known happy load at different seating depths from a .030" jam down to a .150" jump to see how it effects velocity and to find the best group. I am very curious to see what happens. I think I will do this test with any other powder I try as well to see if it has an effect on seating depth as well as velocity nodes. So far I have sweet spots at same velocities with different powders. I must eliminate variables to be conclusive.