I gave up trying to find them after a while. People who ordered Kent shells couldn't/wouldn't get them for me. I started making them myself.
Got a BPI trimmer, MEC 600 Jr, some black powder and WAA12 wads.
Take AA hulls, cut them down with the BPI trimmer, load with 3 dram of black powder, cut feet off of WAA12 wads, insert wad, load 1oz of shot, insert overshot card, roll crimp, profit.