The 20 gauge shotgun cartridge has a nominal bore diameter of approximately 15.6 mm and is manufactured for lightweight shotguns used by both new and experienced shooters.
Where 20 Gauge Sits in the Gauge System
In smoothbore shotguns, the gauge number indicates bore diameter: the smaller the number, the larger the diameter. The 20 gauge bore measures approximately 15.6 mm, narrower than the 12 gauge, which results in a lighter, lower-recoil cartridge class. These characteristics make 20 gauge a practical option for both newer hunters and shooters who spend long sessions on the range, and a natural point of comparison with the 12 gauge shotgun cartridge.
Key Characteristics and Performance
- Bore diameter: approximately 15.6 mm, suited to small and medium game.
- Low recoil: reduced felt recoil compared with 12 gauge, an advantage for beginners and young shooters.
- Pattern consistency: supports accurate, controlled shot placement.
- Load types: available as shot loads, single-projectile slug loads and other specialised configurations.
- Handling: a lighter firearm platform that is easier to carry and manoeuvre.
- Penetration: moderate penetration suited to both hunting and sport shooting.
Typical Applications
- Hunting: suited to small and medium game such as birds, rabbits and small deer.
- Sport shooting: used in trap and skeet disciplines, where lower recoil supports faster, more controlled follow-up shots.
- New and young shooters: low recoil and light handling make it a common training calibre.
- Instruction: frequently used in shooting-safety and marksmanship training for the same reasons.
Ozkursan 20 Gauge Product Catalogue
Ozkursan manufactures 20 gauge cartridges in both shot and slug configurations. Current catalogue references are summarised below.
| Product | Case Type | Colour | Wad | Shot Weight (g) | Shot Size | Muzzle Velocity (m/s) | Pressure (bar) |
|---|---|---|---|---|---|---|---|
| 20 Cal. (Shot) | 20 16 70 | Red Transparent | Power | 28 | 7, 8, 9 | 440 | 560 |
| Etna 20 Cal. Slug | 20 16 70 | Red Transparent | Plastic | 23 | — | 410 | 670 |
Other bore sizes are covered in the 12 gauge, 32 gauge and 36 gauge shotgun cartridge guides.
Safe Use of 20 Gauge Ammunition
- Correct equipment: use only firearms chambered and proofed for the 20 gauge cartridge.
- Safety rules: follow all applicable firearm-safety rules at all times.
- Protective equipment: wear eye and hearing protection while shooting.
- Training: adequate instruction in firearm handling helps prevent accidents.
Review product categories, the catalog and corporate inquiry options for current Ozkursan information.
