Colt's gun featured an automatic, revolving chamber that enabled the user ... The 1860 Army Colt shot .44 caliber bullets, which did much more damage. And by the time of Jesse's bank robberies ...
1400s - The matchlock gun appears. Before the matchlock ... 1830 - The back action lock appears. 1835 - The first Colt revolver. Samuel Colt developed the first mass-produced, multi-shot ...