Samuel Colt new revolver had a stationary trigger and was in a larger caliber. Colt submitted his single prototype to the War Department as a "Holster revolver". Captain Samuel Walker of the Texas Rangers had acquired some of the first Colt revolvers produced during the Seminole War and saw first-hand their effective use as his 15-man unit defeated a larger force of 70 Comanche in Texas. Walker wanted to order Colt revolvers for use by the Rangers in the Mexican–American War, and traveled to New York City in search of Colt. He met Colt in a gunsmith's shop on January 4, 1847,
.38 Short Colt .38 Short Colt The .38 Short Colt (.38 SC) / .38 Short Center Fire (.38 SCF) was a heeled bullet cartridge intended for metallic cartridge conversions of the cap and ball Colt 1851 Navy Revolver from the American Civil War era. Later, this cartridge was fitted with a diameter inside-lubricated bullet in the 125–135 grain range. Visually, it resembles a .38 S&W but the case dimensions are slightly different. The .38 Short Colt case is the parent to .38 Long Colt and .38 Special. Remington is one of the few producers of this cartridge today with a 125grs LRN bullet.