I certainly appreciate your 50 years, knowledge and awards, but in the case of any hollowpoint projectile that method leaves a lot to be desired unless you're meplat trimming and pointing every projectile.
Meplats are seldom the same and mostly always irregular by more than a couple of thous.
There's certainly a faster, better method. I'm betting you already know what that is.
Indexing on the ogive is critical for long range shooting. The cartridge OAL means nothing to me at all.

Latigo