RIFLE: H & R - HARRINGTON & RICHARDSON MODEL 45-70 GOVT, SERIAL NUMBER CBA 211855, BLUE, CASE NOT INCLUDED, BREAK, 45/70 GOVERNMENT, 22" Notes: H & R - Harrington & Richardson 45-70 GOVT The H&R (Harrington & Richardson) .45-70 Government single-shot is a break-action, single-shot rifle chambered for the .45-70 Government cartridge. Manufacturer: Harrington & Richardson (H&R) Action: Break-open, single shot Caliber: .45-70 Government Typical design: Simple, rugged sporting/hunting rifle with a relatively utilitarian finish Loading: One cartridge at a time through the open action Historical context: H&R produced several single-shot .45-70 rifles, including versions associated with its Handi-Rifle/Handi-Rifle-type line. Exact features vary considerably by model and production period. .45-70: A large, straight-wall rifle cartridge originally adopted by the U.S. military in 1873 and still commonly used for hunting and sporting purposes.