The last war to use only muzzle-loaded guns. 1859 - The first full rim-fire cartridge. 1860 - Spencer repeating carbine patented. Introduced at the start of the Civil War, Spencer repeating guns ...
36 caliber 1851 Navy Colt revolver. This gun was named for its inventor ... Samuel Colt died only a year into the Civil War, but his company continued to produce new, deadlier models.