Is it common for the base to ogive measurement to differ if you change your shoulder bump?
I was fiddling around with changing my shoulder bump for 30-06 and I noticed that it changed my base to ogive measurements from 2.717 to 2.724 . I had to adjust my seating die down 7 thousandths to match the base to ogive I wanted
The batch of Sierras Im loading the “bullet length” is sorted to 1.204-1.205. The previous batch was sorted from 1.206 - 1.207. That batch was right on the money 2.717-2.718.
My barrel harmonics are perfect at that BO. Im going from a -0.006 shoulder bump to a .-0.003
I was fiddling around with changing my shoulder bump for 30-06 and I noticed that it changed my base to ogive measurements from 2.717 to 2.724 . I had to adjust my seating die down 7 thousandths to match the base to ogive I wanted
The batch of Sierras Im loading the “bullet length” is sorted to 1.204-1.205. The previous batch was sorted from 1.206 - 1.207. That batch was right on the money 2.717-2.718.
My barrel harmonics are perfect at that BO. Im going from a -0.006 shoulder bump to a .-0.003