1776 to 1860 By asamaniego 1776 1776 The American Revolution was made Period: 1776 to 1860 History project 1807 1807 Percussion-detonating principle patented. 1825 1825 ca. - Percussion-cap guns are in general use. 1830 1830 - The back action lock appears. 1835 1835 - The first Colt revolver. 1840 1840 - Guns begin to use pin-fire cartridges. 1847 1850 - True shotguns in common use. 1854 1854-56 - The Crimean War. .The last war to use only muzzle-loaded guns. 1859 1859 - The first full rim-fire cartridge. 1860 1860 - Spencer repeating carbine patented.