Rango is a 2011 CG animated film directed by Gore Verbinski and centers around a pet chameleon (voiced by Johnny Depp) who decides to pass himself off as a tough drifter in order to become the sheriff of a desert town. The film would go on to receive the Academy Award for Best Animated Feature. The film is included in the IMFDB as the firearms depicted in the film have been depicted in detail and readily identifiable.
The following weapons were used in the film Rango:
Single Action Army
Many of the townsfolk carry Colt 1851 Navy revolvers.
Colt 1860 Army
Several Colt 1860 Army revolvers are seen throughout the movie.
Colt 1849 Pocket
Spoons (voiced by Alex Manugian) carries a Colt 1849 Pocket revolver.
Allen & Thurber Pepperbox
Waffles (voiced by James Ward Byrkit) uses a pair of Allen & Thurber Pepperbox revolvers.
Ambrose (voiced by Ian Abercrombie) carries a single Remington 1866 Derringer.
Winchester Model 1866 "Yellow Boy"
Buford (voiced by Blake Clark) is seen with a Winchester Model 1866 "Yellow Boy" rifle during the posse's search for the stolen water.
Buford's rifle switches to a Henry 1860 rifle during the posse's confrontation with the moles. It was, most likely, done intentionally to homage live action western movies, which often have such continuity mistakes (as CGI animating processes use models and it's high unlikely that a model of Henry 1860 was done, scrapped and accidentally used).
The mole clan is seen riding bats with hand-cranked belt-fed Gatling Guns attached to their saddles. Rattlesnake Jake (voiced by Bill Nighy) is shown using a Gatling Gun attached to his tail in place of a rattle. How this works exactly is never addressed.
Double Barrel Shotgun
Winchester model 1887
The gun rack in the Sheriff's office holds several Winchester Model 1887 shotguns.