Manufacturer catalog

Winchester

Winchester is a long-running American firearms and ammunition brand founded in 1866 and now operated through Olin Corporation's ammunition business. Its public manufacturing context spans legacy Winchester Repeating Arms firearms, commercial cartridge families, and current small-caliber ammunition production for military, law-enforcement, hunting, and sporting markets.

9 weapons

Winchester traces its origin to 1866, when Oliver Winchester took control of New Haven Arms and renamed it Winchester Repeating Arms Company. The brand's early firearms history includes lever-action rifles and later shotguns such as the Model 12, while Olin's 1931 purchase tied Winchester Repeating Arms to the Western Cartridge Company and the broader Olin ammunition business.

Modern Winchester materials present the company as a major small-caliber ammunition producer with facilities tied to East Alton, Oxford, and Lake City operations. In the public weapons catalog, Winchester connects legacy U.S. rifle production, shotgun manufacturing history, and Winchester-named ammunition entries such as the .308 Winchester cartridge.

small-caliber ammunitionfirearmssmall arms manufacturinghunting and sporting ammunitionmilitary small-caliber ammunition

Notable Systems

M14, 7.62 mm battle rifle, Infantry Weapons

M14

7.62 mm battle rifle

The cataloged M14 entry names Winchester among the principal U.S. manufacturers that produced the rifle during main service production.

Sources: M14 production history
.308 Winchester cartridge, Centerfire rifle cartridge in .308 Win, Munitions

.308 Winchester cartridge

Centerfire rifle cartridge in .308 Win

The .308 Winchester cartridge is a Winchester-named commercial rifle cartridge family that remains represented in current Winchester ammunition listings and in the catalog's ammunition records.

Sources: Winchester rifle ammunition listings, .308 Winchester cartridge history
12-gauge shotgun, Shotgun, Infantry Weapons

Winchester Model 12 shotgun

Shotgun

Winchester's firearms timeline records the 1912 introduction of the Model 1912 pump shotgun, later called the Model 12; collector references describe it as a major hammerless slide-action Winchester shotgun line.

Sources: Winchester firearms timeline, Winchester Model 12 reference

Manufacturer History

  1. Oliver Winchester founds the company

    Winchester's official materials say Oliver Winchester founded the company in 1866, establishing the brand's long-running firearms and ammunition lineage.

    Sources: Winchester merchandise page

  2. Model 1912 shotgun introduced

    Winchester's firearms timeline lists the 1912 introduction of the Model 1912 pump shotgun, later called the Model 12, adding a long-lived shotgun family to the Winchester firearms line.

    Sources: Winchester firearms timeline

  3. Olin acquires Winchester Repeating Arms

    Olin's company history and Winchester's firearms timeline record Olin's 1931 purchase of Winchester Repeating Arms and its combination with Western Cartridge Company.

    Sources: Olin history, Winchester firearms timeline

  4. Winchester selected for Lake City operations

    Olin announced that Olin Winchester, LLC had been selected by the U.S. Army to operate and manage the Lake City Army Ammunition Plant after a transition period, expanding Winchester's current military-ammunition manufacturing role.

    Sources: Lake City Army contract announcement

  5. Winchester describes itself as Olin's ammunition division

    Winchester's official media announcement described the brand as a division of Olin Corporation and the leading small-caliber ammunition brand for hunting, recreational shooting, and law enforcement.

    Sources: Winchester Amazon storefront announcement

Predecessors
Winchester Repeating Arms Company
Website links
Official websiteAbout Winchester AmmunitionWinchester FirearmsOlin historyWinchester MilitaryWinchester firearms timeline

Winchester, Winchester Ammunition, Winchester Repeating Arms, and Olin Winchester appear across different modern and legacy sources. Headquarters fields are left absent because current sources more clearly document production facilities and corporate ownership than a stable headquarters address for the Winchester brand.

Manufacturer Sources

  • About Winchester AmmunitionPublisher: Winchester Ammunition | Note: Supports Winchester's current brand identity, ammunition-manufacturing role, and its status as a leading ammunition manufacturer. | Accessed: 2026-06-21
  • Winchester FirearmsPublisher: Winchester Ammunition | Note: Supports Winchester's firearms product line and the Winchester Repeating Arms branding used on the company site. | Accessed: 2026-06-21
  • Winchester merchandise pagePublisher: Winchester Ammunition | Note: Supports the 1866 founding by Oliver Winchester and the long-running American brand framing used by Winchester itself. | Accessed: 2026-06-21
  • Olin historyPublisher: Olin Corporation | Note: Supports Olin's 1931 acquisition of Winchester Repeating Arms and the resulting corporate-ownership context for the modern Winchester brand. | Accessed: 2026-06-21
  • Winchester Amazon storefront announcementPublisher: Winchester Ammunition | Note: Supports Winchester's current division-of-Olin framing and its public claim as the leading small-caliber ammunition brand and largest supplier to the U.S. military. | Accessed: 2026-06-21
  • M14 production historyPublisher: American Rifleman | Note: Supports the M14 manufacturing note by identifying Winchester among the principal U.S. manufacturers tied to the rifle's production history. | Accessed: 2026-06-21
  • Wikimedia Commons factory photoPublisher: Wikimedia Commons | Note: Supports the reusable manufacturer image; the file page identifies the public-domain New Haven Arms Company factory photograph and its Winchester lineage context. | Accessed: 2026-06-21
  • Winchester MilitaryPublisher: Winchester Ammunition | Note: Supports Winchester's current small-caliber military ammunition role, Lake City operational context, and listed U.S. production facilities. | Accessed: 2026-07-04
  • Winchester firearms timelinePublisher: Winchester Repeating Arms | Note: Supports the 1866 Winchester Repeating Arms renaming, the 1912 Model 1912/Model 12 introduction, and the 1931 Olin purchase of Winchester Repeating Arms. | Accessed: 2026-07-04
  • Lake City Army contract announcementPublisher: Olin Corporation via PR Newswire | Note: Supports Olin Winchester's selection to operate and manage Lake City Army Ammunition Plant and describes Winchester's military and commercial ammunition manufacturing footprint. | Accessed: 2026-07-04
  • Winchester rifle ammunition listingsPublisher: Winchester Ammunition | Note: Supports current Winchester product listings for .308 Winchester rifle ammunition. | Accessed: 2026-07-04
  • .308 Winchester cartridge historyPublisher: American Hunter | Note: Supports background on the .308 Winchester cartridge family and its 1952 commercial introduction context. | Accessed: 2026-07-04
  • Winchester Model 12 referencePublisher: Winchester Arms Collectors Association | Note: Supports the Model 12 shotgun note, including Winchester manufacture, chambering range, and production-history context. | Accessed: 2026-07-04

Produced weapons

Category

Infantry Weapons

Portable weapons used by soldiers and small units.

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12-gauge shotgun, Shotgun, Infantry Weapons2022 Haitian Gang Conflict, 2012 Central African Republic Civil War +3 more12-gauge shotgunShotgunBuilt in: United States / Italy / Turkey / other countriesThe 12-gauge shotgun is a broad family of shoulder-fired smoothbore firearms chambered for fixed shotgun shells. Modern 12-gauge guns span pump-action, break-action, and semi-automatic layouts, while documented conflict roles range from Ukrainian short-range counter-drone defense and Central African militia small arms to Islamic State recoveries; Haiti coverage is narrower because the cited reporting identifies gang-held pump-action shotguns without confirming gauge.

Category

Munitions

Standalone missiles, bombs, rockets, torpedoes, and guided or unguided explosive payloads.

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12 Gauge Buckshot, 12-gauge shotgun shell loaded with buckshot pellets, Munitions12 Gauge Buckshot12-gauge shotgun shell loaded with buckshot pelletsBuilt in: United States and other countries12 Gauge Buckshot is a 12-gauge shotshell family loaded with larger lead pellets for close-range patterning from compatible shotguns. Current Federal, Remington, and Winchester pages list commercial buckshot loads across 00, 000, 1, 0, and 4 buck designations, while Marine Corps training material identifies A011 Cartridge, 12 Gauge #00 Buckshot M162 as service-shotgun ammunition rather than a standalone weapon system.
.308 Winchester cartridge, Centerfire rifle cartridge in .308 Win, Munitions.308 Winchester cartridgeCenterfire rifle cartridge in .308 WinBuilt in: United States.308 Winchester is a centerfire, rimless bottleneck rifle cartridge introduced by Winchester in 1952 and still loaded by major ammunition makers for hunting, match, and sporting use. C.I.P. lists 308 Winchester and 7,62 x 51 as alternate names, while SAAMI cautions that chamber fit alone does not guarantee safe interchangeability. This relationship-only page records the cartridge family and its rifle links without inheriting any conflict-use claims from a parent weapon page.
.44 Smith & Wesson Special cartridge, Revolver cartridge, Munitions.44 Smith & Wesson Special cartridgeRevolver cartridgeBuilt in: United StatesThe .44 Smith & Wesson Special is a U.S. rimmed centerfire revolver cartridge developed from the .44 Russian lineage for Smith & Wesson's New Century / Triple Lock revolver context. C.I.P. lists the cartridge at 29.46 mm case length, 41.02 mm overall length, and 1000 bar Pmax, while SAAMI lists 15,500 psi MAP and recognizes 44 S&W Spl as the abbreviated name. Later .44 Remington Magnum development used the .44 Special case family as its starting point.
.357 Magnum cartridge, Revolver cartridge, Munitions.357 Magnum cartridgeRevolver cartridgeBuilt in: United StatesThe .357 Magnum is a U.S. rimmed centerfire revolver cartridge developed from the .38 Special in the 1930s and lengthened so its higher-pressure loads would not chamber in standard .38 Special revolvers. Winchester still catalogs factory loads for the round, SAAMI and C.I.P. publish pressure and dimensional standards, and current Marlin, Henry, Rossi, and Ruger firearms show the chambering's continued revolver, rifle, and carbine compatibility.
45 Automatic (45 Auto), Rimless centerfire pistol cartridge, Munitions45 Automatic (45 Auto)Rimless centerfire pistol cartridgeBuilt in: United States45 Automatic (45 Auto) is SAAMI's recognized name for the .45 ACP cartridge developed around John Browning and Colt's early self-loading pistol work and adopted by the U.S. Army with the Model 1911 pistol. This relationship-only page covers the cartridge as a standardized handgun and submachine-gun round, with SAAMI and C.I.P. dimensions, U.S. military ball-cartridge context, current commercial loads, and a sourced compatibility link to the Glock 21 family.
.40 S&W cartridge, Semi-automatic pistol cartridge, Munitions.40 S&W cartridgeSemi-automatic pistol cartridgeBuilt in: United States.40 S&W is an American centerfire semi-automatic pistol cartridge introduced by Smith & Wesson and Winchester Ammunition in 1990. It packaged the FBI's reduced-velocity 10mm service-load concept into a shorter cartridge suitable for 9mm-size duty pistols, while SAAMI and C.I.P. standards define the cartridge's pressure and dimensional limits. The strongest documented context is design history, specifications, and firearm compatibility rather than conflict-specific battlefield use.