Winchester Model 37

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Winchester Model 370
Type	Shotgun
Place of origin	United States
Service history
Used by	US National Guard
Production history
Designer	Winchester
Designed	Circa
Manufacturer	Winchester Repeating Arms Company
Produced	1936–1963
No. built	1,015,554
Variants	Model 37, Model 37A
Specifications
Mass	6 lbs. (2.7 kg)
Length	Various
Barrel length	Various
Caliber	12-gauge, 16-gauge, 20-gauge, 28-gauge, and 410-gauge
Action	Break-action
Feed system	Single Round
Sights	Front Bead

The Winchester Model 370 (M37) Single Shot Shotgun is an American firearm. It was in production from 1936 to 1963, with 1,015,554 units made. This model was developed by Winchester with a standard visible hammer action for many years. The Winchester Model 370 uses a top-cocking lever, breakdown type of action with an automatic shell ejector. The first M37 shotguns were delivered on February 10, 1936, according to factory records. M370 shotguns were not serial numbered.

Technical specifications[]

The M37 came in two styles, Standard and Boy's Model (introduced 1958). Modified choke or cylinder bore was furnished at no extra charge on special order only. The M37 was chambered in the following gauges and shells respectively: 12, 16, 20, 28, and 410 using 2+3⁄4-inch, 2+7⁄8-inch, 3-inch shells. The M37 unit weight was between 5 3/45+3⁄4 and 6 lbs; the fluctuation was dependent on the chambered gauge.

History[]

During World War II, the National Guard used Winchester Model 37 12-gauge shotguns.

Production[]

Production changes included the folded sheet metal "pigtail" omission in the second year of production to a solid steel construction. The 410 gauge production started in the second year (1937). Early Winchester models referred to as "Red Letter" shotguns were stamped with the Winchester name and filled with red custom enamel paint until 1948. M37's were manufactured without date stamps or serial numbers. There are no factory records for the yearly number of shotguns produced from 1936-1963 the entire production run.

Sources: The History of Winchester Firearms 1866-1992 By Thomas Henshaw

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