Yes, you could. But the first time some moron tries to use shot in one it will probably screw it up for everybody, and that is why you don't see it done very often.Couldn't you technically use a .45 acp can and use slugs? Granted that would only work on a .410 (like the one used in the first video). Correct me if I'm mistaken, but look at the Taurus Judge, it will fire .45 lc as well as .410, so in theory a .45 can would work on a .410 shotgun