Back in the day, the 99 takedowns could be had with an accessory .410 barrel, making it a single-shot shotgun. Most of those barrels have been lost. I have seen only one 99 TD which still had the .410 barrel. I don't know if Lee still stocks .303 Savage dies, but they did when I bought my 99. The FL die had a metal burr inside of it that scratched the case, and Lee replaced it without question.