Used this method for 243 >AI,280>AI, 300 H&H > 300 Weatherby.

Perfect results and no barrel wear.

https://gundigest.com/gear-ammo/reloading/the-ins-and-outs-of-fireforming-cases

Paranoia strikes deep
Into your life it will creep
It starts when you're always afraid
Step out of line, the man come and take you away