Thanks for sharing your experience Daryl. Much appreciated. My experience is limited to trying to make 358 out of 30'06 brass & fine tuning 280 Ackey Imp brass after 10 reloads (the cases were still ok but the necks had got thicker with the slow flow-forward of the brass). I found that run-out of more than 0.005" opened up groups beyond MOA. No, I am not a BR or long range varmint shooter. Just a regular guns & reloading looney as John Barness puts it!

Cheers