The AI mags were designed for non-rimmed cases. The back of the feed lips are straight up, and I would think would catch on the rimmed part of the case. If you altered the back of these feed lips, it
might work. (Take a Dremel tool to angle the rear feed lips forward). There's only a .028" difference between the case body and the rim size sticking out. It might be worth a try. You may also need a lip forming tool, to bend the lips into place for proper feeding.
Something like this:
http://www.brownells.com/gunsmith-tools-...-prod25049.aspx