Someone needs to further explain to me how fireformed, rifle specific, neck sized brass (Lee collett) can cause runout problems? The collet neck sizing die sizes the whole neck, unlike the
bushing neck sizing die, and doesn't require case lube. Increase in run out hasn't been my experience at all, over about a 10 year period. About every 5th firing I bump back shoulders with a body die, but always check to see how post prepped brass chambers before loading. Never had any accuracy issues, ever. Guess I'm missing something.
JG, I don't think they are talking about Lee Collets, rather conventional neck sizers like this:
https://www.midwayusa.com/product/1012087763?pid=623908
