Not so fast everyone.  I just figured out the real issue on my bolt jam and failure to feed.

If the rim of the cartridge in the ready position is behind the rim of the next cartridge in line it will not load and keeps the bolt from going forward.  The reason is that the rim of the ready cartridge is behind the rim of the next cartridge so it is trying to push the next round in the magazine forward with it. The nose of the next cartridge is up against the forward wall of the magazine well so it can't move.

If I carefully load each cartridge so the rim of each succeeding cartridge is behind the previous cartridge all is good.

Is something not working right, or is this normal?