20 Gauge
1870 · Various · 83 firearms in catalog
Also known as: 20GA, 20 Bore
Cartridge specifications
| Bullet Diameter | 15.63 mm (0.615") |
| Base Diameter | 17.4 mm (0.685") |
| Case Length | 70 mm (2.756") |
| Overall Length | 70 mm (2.756") |
| Max Pressure | 74 MPa (12,000 psi) |
| Typical Bullet Weight | 24 g (370 gr) |
| Typical Muzzle Velocity | 380 m/s (1247 fps) |
| Typical Muzzle Energy | 1734 J (1279 ft·lbf) |
| Primer Type | Shotshell 209 |
| Cartridge Type | Rimmed |
| Introduced | 1870 |
Firearms chambered in 20 Gauge
- Armscor All Generations Pump 20GA — Armscor / Rock Island Armory · Shotgun
- Armscor Traditional Single Shot 20GA — Armscor / Rock Island Armory · Shotgun
- Benelli ETHOS — Benelli Armi SpA · Shotgun · 2014
- Benelli Ethos Cordoba — Benelli Armi SpA · Shotgun · 2026
- Benelli ETHOS Sport — Benelli Armi SpA · Shotgun · 2018
- Benelli ETHOS SuperSport — Benelli Armi SpA · Shotgun · 2022
- Benelli ETHOS SuperSport A.I. — Benelli Armi SpA · Shotgun · 2024
- Benelli Ethos Upland — Benelli Armi SpA · Shotgun · 2026
- Benelli M2 — Benelli Armi SpA · Shotgun · 2004
- Benelli M2 Field — Benelli Armi SpA · Shotgun · 2004
- Benelli Montefeltro — Benelli Armi SpA · Shotgun · 1987
- Benelli Montefeltro Ultra Light — Benelli Armi SpA · Shotgun · 2024
- Benelli Nova — Benelli Armi SpA · Shotgun · 1999
- Benelli Sport II — Benelli Armi SpA · Shotgun · 2008
- Benelli Super Black Eagle 3 A.I. 20 Gauge — Benelli Armi SpA · Shotgun · 2025
- Beretta 686 Silver Pigeon I — Fabbrica d'Armi Pietro Beretta S.p.A. · Shotgun · 2000
- Beretta 687 Silver Pigeon — Fabbrica d'Armi Pietro Beretta · Shotgun · 1992
- Beretta 690 — Fabbrica d'Armi Pietro Beretta · Shotgun · 2013
- Beretta A300 Ultima Patrol 20 Gauge — Fabbrica d'Armi Pietro Beretta · Shotgun · 2026
- Blaser F16 — Blaser Jagdwaffen GmbH · Shotgun · 2016
- Blaser F3 — Blaser Jagdwaffen GmbH · Shotgun · 2003
- Browning Auto-5 — Browning Arms Company · Shotgun · 1902
- Browning BPS — Browning Arms Company · Shotgun · 1977
- Browning Citori — Browning Arms Company · Shotgun · 1973
- Browning Superposed — Browning Arms Company · Shotgun · 1931
- Caesar Guerini Summit — Caesar Guerini S.r.l. · Shotgun · 2004
- Charles Daly 101 — Charles Daly · Shotgun · 2017
- Dickinson Arms Sidelite — Dickinson Arms · Shotgun · 2026
- EAA Balikli Blue Label O/U — European American Armory · Shotgun · 2026
- Escort BullTac — Escort Shotguns (Hatsan Arms) · Shotgun · 2023
- Escort BullTac SA — Escort Shotguns (Hatsan Arms) · Shotgun · 2024
- Escort FieldHunter — Escort Shotguns (Hatsan Arms) · Shotgun · 2015
- Escort Gladius — Escort Shotguns (Hatsan Arms) · Shotgun · 2014
- Escort PS — Escort Shotguns (Hatsan Arms) · Shotgun · 2002
- Escort Supreme — Escort Shotguns (Hatsan Arms) · Shotgun · 2005
- Escort WS — Escort Shotguns (Hatsan Arms) · Shotgun · 2002
- Fausti DEA — Fausti Stefano Srl · Shotgun
- Fox Model B — Savage Arms · Shotgun · 1940
- Franchi Instinct — Luigi Franchi S.p.A. · Shotgun · 2012
- Ithaca Model 37 Featherlight — Ithaca Gun Company · Shotgun · 1937
- LeMat Revolving Carbine — LeMat · Carbine · 1861
- Merkel Model 141 — Merkel Jagd- und Sportwaffen · Shotgun · 1922
- Miroku MK70 — Miroku Corporation · Shotgun · 2010
- Mossberg 500 — O.F. Mossberg & Sons · Shotgun · 1961
- Mossberg 590 Shockwave — O.F. Mossberg & Sons · Shotgun · 2017
- Mossberg Maverick 88 — O.F. Mossberg & Sons · Shotgun · 1989
- Mossberg SA-20 — O.F. Mossberg & Sons, Inc. · Shotgun · 2009
- Remington Model 11 — Remington Arms · Shotgun · 1905
- Remington Model 11-87 — Remington Arms Company (RemArms) · Shotgun · 1987
- Rigby Rising Bite Shotgun — John Rigby & Co. · Shotgun · 2020
- Rizzini Aurum — Battista Rizzini S.r.l. · Shotgun
- Ruger Red Label III — Sturm, Ruger & Co. · Shotgun · 2024
- Savage 110 Harvester — Savage Arms · Shotgun · 2026
- Savage 212/220 HARVESTER — Savage Arms · Shotgun
- Savage 212/220 HARVESTER WOODLAND — Savage Arms · Shotgun
- Savage 220 EXCAPE CAMO — Savage Arms · Shotgun
- Savage 220 SLUG XP W/ SLING — Savage Arms · Shotgun
- Savage 301 SINGLE SHOT — Savage Arms · Shotgun
- Savage 301 TURKEY — Savage Arms · Shotgun
- Savage 301 TURKEY XP — Savage Arms · Shotgun
- Savage 320 FIELD GRADE — Savage Arms · Shotgun
- Savage 320 FIELD GRADE COMPACT MUDDY GIRL SERENITY — Savage Arms · Shotgun
- Savage 320 SECURITY BEAD SIGHT W/PISTOL GRIP — Savage Arms · Pistol
- Savage 320 SECURITY GHOST RING SIGHT W/PISTOL GRIP — Savage Arms · Pistol
- Savage 320 TACTICAL FDE — Savage Arms · Shotgun
- Savage 320 TURKEY THUMBHOLE — Savage Arms · Shotgun
- Savage 555 — Savage Arms · Shotgun
- Savage 555 E — Savage Arms · Shotgun
- Savage 555 Sporting — Savage Arms · Shotgun
- Savage 555 Trap — Savage Arms · Shotgun
- Spandau Arms S2 — Spandau Arms · Shotgun · 2026
- Stevens 555 — Stevens · Shotgun · 2015
- Stevens 560 Compact — Stevens · Shotgun · 2024
- Stevens Model 311 — Stevens · Shotgun · 1926
- Stoeger Coach Gun — Stoeger Industries · Shotgun · 2000
- Stoeger V7000 Over/Under — Stoeger Industries · Shotgun · 2026
- TriStar Upland Hunter Thumbhole — TriStar Arms · Shotgun · 2026
- Weatherby Element — Weatherby, Inc. · Shotgun · 2015
- Weatherby SA-08 — Weatherby, Inc. · Shotgun · 2008
- Winchester Model 12 — Winchester Repeating Arms Company · Shotgun · 1912
- Winchester Model 37 — Winchester Repeating Arms Company · Shotgun · 1936
- Winchester Super X3 — Winchester Repeating Arms · Shotgun · 2006
- Winchester SX4 — Winchester Repeating Arms · Shotgun · 2017
Cartridge family
Derived cartridges