Like Jim, I haven't encountered a 2 tube/basewad type AA hull that wasn't a HS. The last time I bought AA ammo was 2-3 yrs ago and I bought about 10 flats of 410 and 10 of 28g. The HS was just hitting the streets and my ammo was mixed, with mostly compression formed 410s and the 28's were mostly if not all HS. I segrated the HS empties and haven't reloaded any of them to date. I have a couple PWs and don't need a problem. What bothers me is that the 3 piece hull has been around for, well, forever. This issue hasn't been prevalent in other makes of 3 piece hulls that I've heard of. I did recall some friends that loaded the cheap promo hulls with aluminum and steel bases and they had paper basewads that would fly out on occasion. But none ever stuck in the barrel.
