Okay, this is slightly related I guess. In 2022 I bought several boxes of commercial BP-sub shotshells from a shooter getting out of the game for health reasons. It was made by Ammo Direct and used Pinnacle in paper hulls with an ounce of shot. I expect this ammo was a dozen or more years old at the time. I tried it out at a monthly match. It shot okay, smoked, and took down the targets. Seemed a little hot, compared to my BP shells. Buy OH MY! The shells disintegrated! See top pic. On the first two, the hulls stuck in the chambers and the extractor pulled out past the heads (I think they flexed). It was a pain to get them out of the chamber. Next two shots, the extractor pulled the heads off the hulls, and I had to put my finger inside the empty hulls to pull them out of the chamber. It was a VERY slow stage!
In the second pic, you can see the wad they used compared to a red wad. Looks to me like their wad was too long, which compressed the Pinnacle (made by APP) which isn't supposed to be compressed. It was like a rock and had to be chipped out of the hull with an ice pick. Of course just being old might have made it hard as well.
My theory is just that the chemicals in that BP sub (is ascorbic acid one?) reacted with the paper over time. Anyway, a few months ago I wanted to try something, so I emptied out a few of the hulls and reloaded with BP and roll crimped. I figured if this worked I could reload them all, even though it was a bit of a hassle to disassemble. Well, they looked okay as you can see, but they still disintegrated, so the damage had already been done to the paper. (didn't take another picture, but they split just like the first ones). I might reclaim the shot out of them, anyway.
Oh yeah, the way this is related is that Mako needs to re-do his poll again to add paper hulls.
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