Most of us feel your pain and have been there. I have had my .410 for 5 years, and just modded it with wood furniture and every upgrade I wanted. I love it. For ammo, I field tested several types and brands, with every magazine made. For ammo, I have found Winchester Super X 3" to be reliable. I have it in bird, buck, and slug. It runs great in my factory mags and my promag drum. I have not had good experience with the SGM 15 round mags and no longer use them. The shells sit too low in the mag, and therefore the bolt does not reliably collect them and feed them into battery. Regarding PDX-1, I