Not my picture, but an excellent example of how useful a capegun can be in North America. My Sauer capegun is 12ga X .43 Mauser like the one in the picture. I use it when turkey hunting in an area with wild hogs.

The .43 Mauser is an obsolete German military black powder round approximately the same as our 45/70 government. Smokeless equivalent ammo was last made commercially in North America by the Canadian CIL/Dominion company and the ammo appears regularly for sale on the usual internet sites.