johno, I'm going to look through my back issues of the Small Arms Review for the article. I know that the retrofit kit is sold by one of Eugene Stoner's old partners at Fairchild Corporation.
Hopefully, you can have your armorer sneak in the parts for a bottle of Scotch!
the only prob. i've seen w/wolf ammo is in my son's sig p-220-(45 acp)every 2nd or 3rd rd will fail to eject.have had 2 minor case ruptures in my m-44 mosin nagant but didn't even notice until i picked up cases after shooting.no probs at all in sks.
I have had no problems with the wolfe ammo but I have never shot more than 15-20 rounds in a row without letting it cool down a bit. Not the most accurate stuff though, But shot some small deer with the hollow point stuff at about 50 yards, dropped them on the spot so can't compain.
I've never had a problem with it in my P89,or my Mak90.I only shoot my reloads in my Colt HBAR,I'm kind of particular what I feed it,so I can't say about their .223.