Samuel Hamilton Walker and General Winfield Scott's armies. Walker is best known as the co-inventor of the famous "Walker Colt" revolver, along with arms manufacturer Samuel Colt. Walker is said to have self-funded a trip to New York City to meet with Colt and proposed to him the concept of a weapon based on the then-popular five-shot Colt Paterson revolver, with many enhancements such as adding a sixth round, being powerful enough to kill either a man or a horse with a single shot and quicker to reload . Colt's firearms company was no longer in business, but the large order allowed Colt
Colt M1900 .32 ACP, etc.), yet fired at similar velocities, giving more power. The .38 ACP was also a much faster cartridge than the .38 Long Colt revolver cartridge in service at the time, which fired a 130 grain bullet at (albeit 130 grains being a heavier bullet). Colt was also experimenting with a .41 caliber cartridge for use in the Model 1900, as reported to the Ordnance Department during testing. Like the .41 Long Colt, this probably used a .400 inch bullet. The poor performance of the .38 Long Colt in combat in the Philippine–American War of 1899–1902 resulted in the