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{{No footnotes|date=April 2009}}
{{Infobox weapon
| name = Winchester Model 1912 shotgun
| image = Winchester Model 1912.JPG
| image_size = 300
| caption = Winchester Model 12 12-gauge pump-action shotgun manufactured in 1948
| origin = United States
| type = [[Shotgun]]
<!-- Type selection -->| is_ranged = yes
<!-- Service history -->| service = 1912–present
| used_by = [[United States Army]]<br />[[United States Navy]]<br />[[United States Marine Corps]]▼
| wars = [[World War I]]<br />[[World War II]]<br />[[Korean War]]<br />[[Vietnam War]]▼
<!-- Production history -->| designer = [[T.C. Johnson]]<br>[[John M. Browning]]▼
▲|used_by=[[United States Army]]<br />[[United States Navy]]<br />[[United States Marine Corps]]
| design_date = ▼
▲|wars=[[World War I]]<br />[[World War II]]<br />[[Korean War]]<br />[[Vietnam War]]
| manufacturer = [[Winchester Repeating Arms Company]]▼
| unit_cost = ▼
▲|designer= [[T.C. Johnson]]<br>[[John M. Browning]]
| production_date = 1912–1964, with special production runs until 2006▼
▲|design_date=
| number = nearly 2,000,000▼
▲|manufacturer=[[Winchester Repeating Arms Company]]
| variants = See text▼
▲|unit_cost=
<!-- General specifications -->| weight = ▼
▲|production_date=1912–1964, with special production runs until 2006
| length =
▲|number=nearly 2,000,000
| part_length = ▼
▲|variants=See text
| width =
▲<!-- General specifications -->
| height =
| diameter = ▼
| crew = <!-- Ranged weapon specifications -->▼
▲|part_length=
| cartridge = ▼
| caliber = [[Gauge (bore diameter)|12 gauge]], [[16 gauge]], [[20 gauge]], [[gauge (bore diameter)|28 gauge]]▼
| action = [[Pump-action]], [[Tilting bolt]]▼
▲|diameter=
| rate =
| velocity = ▼
▲<!-- Ranged weapon specifications -->
| range =
▲|cartridge=
| max_range = ▼
▲|caliber=[[Gauge (bore diameter)|12 gauge]], [[16 gauge]], [[20 gauge]], [[gauge (bore diameter)|28 gauge]]
| feed = 6-
▲|action=[[Pump-action]]
| sights =
▲|velocity=
▲|max_range=
▲|feed=6-round [[Magazine (firearms)#Tubular|tubular magazine]] (see text for more details)
}}
The '''[[Winchester Repeating Arms Company|Winchester]] Model 1912''',
==Description==
The Model 1912 (shortened to Model 12 in 1919) was the next step from the [[Winchester Model 1897]] hammer-fired shotgun, which in turn had evolved from the earlier Winchester Model 1893 shotgun. The Model 12 was designed by Winchester engineer [[T.C. Johnson]], and was based in part on the M1893/97 design by [[John M. Browning]], in that it used a sliding forearm or "pump action" to cycle the mechanism and a [[Tilting bolt|tilting breechblock]].<ref>[https://www.youtube.com/watch?v=_uuMJ9grq-0 The Winchester Model 12 Cut-Away and Cycle of Operation] accessed 2 May 2023.</ref> It was initially available in 20 gauge only (12 and 16 gauge guns were not sold until late
Its tubular magazine was loaded through the bottom of the gun. Empty shotgun shells ejected to the right. Depending on the particular wooden plug installed in the magazine, two, three, or four shells could be loaded into the tubular magazine. The magazine tube held six 2¾-inch 12 gauge shells, whereas most modern sporting shotguns
With forged and machined steel parts, the ultimate reason for discontinuation in 1964 was that it was too expensive to produce at a competitive price. The primary competition at this time came from the much less expensive [[Remington 870|Remington Model 870]], which had been introduced in 1950. The majority of "modern" Model 12 shotguns manufactured after 1927 were chambered for 2¾-inch shotgun shells only, although some specialized models such as the Heavy Duck Gun Model 12 were chambered for 3" Super Speed and Super X shells (basically a 3" magnum). The early 20 gauge Model 12 guns had chambers that were 2½", and the 16 gauge Model 12s were chambered for a 2 9/16-inch shotgun shell. To add further confusion, some of these early Model 12s have subsequently been modified, with their chambers lengthened to accept 2¾-inch shotgun shells, while others remain in their factory-stock chamber lengths. Careful inspection by a gunsmith is always recommended to determine whether or not it is safe to fire a modern 2¾-inch shotgun shell in older Model 12s. It is worth noting that while a 2¾-inch shell will often chamber in the short chambered Model 12s this will result in excessive pressure upon firing, and the fact that a 2¾-inch shell fits should never be taken as an indication that the chamber has been modified.
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[[Image:Trench Shotgun win12 800.jpg|thumb|Winchester Model 12 Trench Gun]]
More than 80,000 Model 12 shotguns were purchased during [[World War II]] by the [[United States Marine Corps]], [[United States Army Air Forces|Army Air Forces]], and [[United States Navy|Navy]], mostly for use in the [[Pacific War|Pacific theater]]. [[Riot shotgun|Riot gun]] versions of the Model 12, lacking the heat shield and bayonet, were purchased by the Army for use in defending bases and in protecting Air Forces aircraft against saboteurs when parked. The Navy similarly purchased and used the riot gun version for protecting Navy ships and personnel while in foreign ports. The Marine Corps used the trench gun version of the Model 12 to great success in taking Japanese-occupied islands in the Pacific. The primary difference
During the Korean War, the Marines used the Model 12 extensively. Likewise, the Marines and U.S. Army used the Model 12 during the Vietnam War. However, production of the Model 12 ended in 1964, which led to the Model 12 no longer being purchased by the military. However, there were numerous firearms already in the American arsenal, and the Model 12 would continue to see combat service until the end of the 1960s. During the middle 1960s, the [[Ithaca 37]] shotgun was acquired for combat use, and it began replacing the Model 12 as the primary shotgun employed by the United States military. The Ithaca 37 eventually became the most commonly-used shotgun of the Vietnam War. Other shotguns which were used in that conflict included the Winchester Model 1897 trench gun, the Stevens Model 77 shotgun, and the Remington 870 Wingmaster, the latter of which was used more by the U.S. Navy than other branches.
Unlike most modern pump-action shotguns, the Winchester Model 12 had no [[trigger disconnector]]. Like the earlier [[Winchester Model 1897]], it fired each time the action closed as long as the trigger remained depressed from the prior shot. While the trigger remained depressed, as fast as one could pump the action open and closed another round would fire ("slam firing"). That capability and its
''See [[List of individual weapons of the U.S. Armed Forces]]''
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==Users==
*{{GRC}}: Used by [[1st Paratroopers Brigade (Greece)]].
*{{MAS}}:<ref>{{cite web |url=http://www.tactical-life.com/online/special-weapons/malaysian-special-forces |title=Malaysian Special Forces |first=Leroy |last=Thompson |date=December 3, 2008 |work=Tactical Life |access-date=2010-02-10}}</ref>
*{{USA}}
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*"Sequence of Take-down and Assembly Operations Model 12 Slide Action Repeating Shotgun", A. A. Arnold, Olin, Winchester-Western Division, New Haven, CT, October 1957
{{WWIUSInfWeaponsNav}}
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