Originally Posted by joshf303
I find my BTO measurement to the lands with bullet of choice...
Run my 10-12 shot string over MagnetoSpeed to find max pressure and my flat spots in velocity....
Pick my powder charge accordingly...

Load a couple hundred and go shoot it. The shoot/clean, shoot/clean “break in” routine is a waste of time with the custom barrels of today IMO.

Exactly this.