When I built my 20 VT I started looking for a BATCH of brass. Someone had 1K of FC for sale so I said sold. All were nice, clean and once fired. For safety I got a set of jewelers stamps and put a line thru the FC and the 0? then stamped VT between the FC and the 0?. Again between the 0? and FC they got stamped 20. I was not worried about neck splitting or having to trim necks as that was a given, like 1/2 inch. Yes I outside trimmed the new necks and everything is good after several reloads, no splits no loose pockets but because some people gave them a bad rap I got a great price on some military brass.

I think military specks are much tighter than SAMMI anyhow.