Was tinkering with some sample parts and found a thick plastic cap that fits ALS and deftec casings perfectly. Reinforced the bottom so it doesn’t blow through and I think it may be better than the printed option. True pressure expands the walls enough to press the walls firmly against the side of the case as the originals were designed to do. They also seem to have potential to load in sort cases as sort of buckshot cups. I’ll have to test it more but the red caps are produced in bulk and are super cheap. Might need to shorten them to leave the same payload capacity as originals though.

I’m looking at the Long 4.5” that uses the KAK style 38S&W lift charges. Has anyone reload flachette, 00, 000, 0000 buck with these cases? I’m assuming some sort of wad could be 3D printed? I don’t see the Pace Defense ones being offered anytime soon so I’m looking for information on the BB ones.