Originally Posted by
rfd
while i've only been at this fascinating ppb game since last fall, i think that ppb's might get, or are getting, a bad rap IF they're used in guns with barrel chambers not particularly designed for that style of black powder cartridge.
the black powder pushed ppb will be at, or under, land bore diameter. the lubed bullet will be at, or greater, than land groove diameter. then consider how that bore riding ppb will sit in a larger throat chamber that has a significant leade, while the the ppb is hopefully long enuf to predominantly sit into the rifling. this is not to imply that ppb's couldn't or shouldn't or won't work in greaser chambers, it's just that in the best of worlds, black powder cartridge ppb's are probably best used with ppb chambered rifles ... for whatever one thinks "best" means ... for me, it's about consistent accuracy at 200 yards and lots more ... which is why my ordered shiloh will have a ppb chamber.