Ken McNabb had one of his shows about how to get horses used to gun fire. I couldn't find a clip but these were entertaining. They show what a lot of people want as the end result. Of course safety first and lots of training and desensitizing. Plus ear plugs for the horse since a lot of times these guys are shooting right near them!
I don't think I'd ever want to shoot from horseback but getting my horse used to scary sounds like this could do a lot for making her less spooky, not that she's a spooky horse! I think it would be awesome to see this in person! Hope you enjoyed both these videos. I got a kick out of them, makes me want to go shoot skeet or clay pigeons or some such thing!