The shooter rolls a range-based number of dice looking for 6s, either deliberately (one hit max) or blazing away (multiple hits, ammo risk).
How it works
With deliberate fire, any 6 is a single hit, and the character may Aim first (+6 dice rifle, +4 pistol, if he acts again before the target moves); Citizens cannot fire deliberately. Blazing away adds dice (+1 breech-loader, +2 repeater, +3 pistol) and each 6 hits, up to 1, 2 or 3 hits by weapon. A shooter left with zero or fewer dice may still try a lucky shot: three dice needing two 6s.
Blazing away: Each 6 rolled gives him a hit on his target, except that breach loaders may only hit once, repeating rifles up to twice, and six shooters up to three times.