KurtisB
Hammer Time Executive member
I'll take it one step further. For prepping new brass, I neck size with a .308" bushing neck sizer, run my .282" expander mandrel for .280 AI, run a .282" inside neck reamer, then turn the OD of the necks just enough until there are no untouched spots. Downside, it requires me to have multiple neck bushing sizes. Is it necessary? Not at all, but I'm OCD like that. It's turned out that my Nosler .280 AI brass ends up with a .309" OD after turning. To which I use a .308" bushing for .003" neck tension.