20 Gauge 3 Inch Magnum
1925 · 10 firearms in catalog
Also known as: 20 ga 3", 20 ga Magnum, 20 bore 76mm
Cartridge specifications
| Bullet Diameter | 15.6 mm (0.614") |
| Base Diameter | 17.4 mm (0.685") |
| Case Length | 76 mm (2.992") |
| Overall Length | 82 mm (3.228") |
| Max Pressure | 83 MPa (12,000 psi) |
| Primer Type | Shotshell |
| Cartridge Type | Rimmed |
| Introduced | 1925 |
Firearms chambered in 20 Gauge 3 Inch Magnum
- Retay ACE — Retay Arms · Shotgun · 2024
- Retay ACE Paloma — Retay Arms · Shotgun · 2024
- Retay ACE Upland Ultralight — Retay Arms · Shotgun · 2024
- Retay ACE-R — Retay Arms · Shotgun · 2024
- Retay Gordion Compact — Retay Arms · Shotgun · 2024
- Retay Gordion Slug — Retay Arms · Shotgun · 2022
- Retay Gordion Turkey — Retay Arms · Shotgun · 2020
- Retay Gordion Upland — Retay Arms · Shotgun · 2021
- Retay Gordion Waterfowl — Retay Arms · Shotgun · 2018
- Retay Masai Mara — Retay Arms · Shotgun · 2016
Cartridge family
Parent cartridge: 20 Gauge