You get a matched set of single action revolvers chambered to .45 long Colt.
You load them each with five blank cartridges and leave the hammer on the empty cylinder . Ear plugs for you , ear plugs for your horsie
Then you gallop around and shoot at balloons or empty plastic milk jugs . There is enough stuff coming out of a blank to make holes in them
If you look closely you can see this horse has additional hearing protection - a pair of "ear socks" .
Thus we are prepared for the Iranian cavalry .