You would probably love to attend some of the cowboy action competition meets over here. We also have some 'mountain man" competitions wherein you must shoot at targets with a blackpowder, muzzleloading rifle, throw knives and tomahawks at targets, build a fire with flint and sticks and play poker. Ties are broken at the end by shooting at a lemon (or egg) at 100 and then 200 yards.
Being in Britain, are those six shooters real and just firing blanks, or are they blanks-only, like starter pistols?