The Winchester Model 1900 was a bolt action .22 caliber rifle. The rifle was only capable of single shot use. To keep cost down Winchester made sure to keep it simple and even made some adjustments to John Browning’s original design. The production rifle was capable of firing both .22 Short and .22 Long. The Winchester Model 1900 Single Shot 22 Rifle design was granted US Patent 632094 on August 29th, 1899. John Moses Browning applied for this patent on February 17th, 1899.