You are correct sir...in all statements. I found since I had a brand new one in my collection already but the thing is these have been long sequestered in this country. Hard to guess which exact one it is but they have been out going through just a few. This was between last Friday and the week before or I would have found it then. Once before I found a trials cartridge from when the FNs were being tested. That came home too.
I had the opportunity many years ago to make a batch of 600rds 7.92x33K for a shooter that had an Mp44. I used Federal once fired .308 and sized, cut and inside chamfered...trimmed and loaded them. I guess they worked out just fine. Long time since we've been able to shoot those though. At least pre '98.