Hell, some people could do that with a slingshot, On Horeseback; no less
The trick is to use about a dozen BB’s in the pouch of the slingshot. In other words, it’s a shotgun load with rubber bands instead of gunpowder providing the push. The cheapness of both the weapon and its ammunition, its lightness, its freedom from noise—all help make the slingshot a really versatile device. You can unlimber it without fear in areas where the mere sight of a firearm of any kind brings police radio cars with their sirens screeching.
The real secret of accurate slingshooting is proper ammunition. The size of the balls isn’t important but their shape is. They must be perfectly round. If they aren’t, they corkscrew all over the sky. Standard shot in all sizes from No. 12 up to No. 00 and steel or lead balls or ball bearings up to 5/8-inch diameter are being used with success. For shooting at paper targets, No. 10, 9 or 8 shot is about right. For herding cattle, training dogs and routing nocturnal cats, BB’s or No. 3 buckshot will sting without hurting. For winged game, scatter loads of BB’s with full pull on the rubbers will produce effective patterns
On the serious side: I was watching a SASS show on TV a couple of weeks ago and there was a kid about 15 or 16 that had Two six shooters and hit 12 targets lightning fast. How he fanned the hammer is beyound me. The kid said that he just held down the triggers and fanned to shoot. He did not miss and the targets were multiple locations and distances and shapes. Even had a couple that worked like traps were he hit the bottom target and it flipped some bottles in the air that he then hit. He then picked up a lever action rifle and a old sytyle shotgun and did the same.
LINK to SASS
http://www.sassnet.com/
The "KID" was interviewed and one of his secreat tricks was to squirt Toothpaste into a new revolver and shoot it without bulets a few thousand times while watching TV just to looseten up the action and polish everything. What do you gunsmith guys think about doing that? I have a colt Navy .36 that could use a good dental hygenist. I'll have to nickname it "Flossy" when Im finished
WAX Bulletts: Im gonna have to try that. Dont they melt from the flash of the black powder?