
Originally Posted by
I'll Make Mine
Correct. This apparently works with proper nitro card overpowder wads (as used in old style fiber wad loads or muzzleloading shotguns), but not so much with the bingo chips (which none the less work very well for overshot in place of the more costly pieces sold for this).
I started out following the advice in the instruction manual for the Load All II, which makes only one component distinction: plastic base wad and one-piece hulls, or paper base wad/paper hull. I wish they'd mentioned up front that those two hull types, also called "tapered" and "straight wall", need different wads even for the same column height vs. only different powder charges for the same velocity. And if I'd gotten straight-wall type wads in the first place, I might not have noticed this issue, at least not this soon, because most of those will apparently work in both kinds of hull.
And yes, I'll probably ignore the advice that hulls are not worth salvaging, though as noted in my OP, I'm not willing to spend much time saving them. If I do wind up cutting the crimps, I'll still have usable shortened hulls and I'll need to make up a riser for my press (and cut back the tube on at least the final crimp station), but an 870 is reported to reliably feed shells as short as 1 3/4 inches and these would wind up as 2 1/2 -- and I've even got loading data for 2 1/2 shells. At about a dime each to replace them with once-fired, however, the trimmed shells might wait a while until I can find or make a suitable shell riser.
I might note that we get that advice in the Hornady, Speer, etc. reloading manuals for metallic cartridges, too -- advice which is broadly ignored by using different bullets of the same or very similar weight, substituting cast for jacketed changing primers, and sometimes even using loads for (for instance) .38 Special in .357 Magnum cases (and back in the day, vice versa with bullets seated out). I would note that the YouTube information I've accepted is from long running shotshell reloading channels, and is duplicated from more than one source.
Where I screwed up was in not using the correct kind of remedy (bingo chip vs. proper nitro card), because there wasn't time to wait for shipping (and I didn't yet know about what seems to be the one decent local source of components, a ten minute detour from my normal route home from work). I also screwed up long ago by moving to a place "in the country" that is none the less more than an hour from anywhere I can shoot a shotgun, even to test a couple rounds, without knowing the land owners and getting appropriate written permission.