I've read a few threads about shotshell's for the 500 but haven't found anyone who's either successfully "hand rolled" any or any manufacturer's that produce them... Well this morning I was adding a link for ammo to a new 500 owner when I was pleasantly surprised to see that Matt's Bullets is now producing and selling them!!!!

They look like they'd Definitely be some good snake medicine!!

Here's the link!! Enjoy!!!

500 S&W #9 Shotshells 20 Cartridges [500shotshell9-20] - $55.00 : Matts Bullets Ammunition