Shotgun · Proprietary
8 Gauge
Large-bore shotgun gauge used for waterfowl and dangerous game in the 19th century; 8-bore punt guns were common; currently illegal for hunting but produced for industrial use..
- Caliber
- 0.835″ · 21.209 mm
- Introduced
- 1860
- Case
- Rimmed
- Status
- Limited
- Introduced
- 1860
- Type
- Shotgun
- Origin
- United Kingdom
- Inventor
- Various
- Standard
- Proprietary
- Status
- Limited
- Availability
- Rare
- Primer
- Shotgun
- Case type
- Rimmed
- Eff. range
- 75 yd
Ballistics
Published velocity/energy data isn't available for 8 Gauge.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
Wikipedia · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 21.21 | 0.835 | · |
| Neck ⌀ | — | — | |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 23.19 | 0.913 | ~ |
| Rim ⌀ | 25.35 | 0.998 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | — | — | |
| Neck length | n/a | ||
| Case length | 82.55 | 3.250 | · |
| Overall length | — | — | |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 8 Gauge is highlighted below.
Missing a dimension for 8 Gauge? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in 8 Gauge
2 models in the database chamber 8 Gauge. Browse all →
Connected reference
History
Once popular for waterfowl hunting and dangerous game, the 8 gauge was effectively banned for hunting waterfowl in the United States by the Migratory Bird Treaty Act amendments. Large punt guns in 8 bore were used for commercial market hunting before being outlawed. Today 8 gauge shells are produced for industrial bird deterrence and by specialty loaders for antique gun collectors and film armourers.
FAQs
- What bullet diameter is 8 Gauge?
- 8 Gauge uses a 0.835″ (21.209 mm) diameter bullet.
- Is 8 Gauge still in production?
- 8 Gauge is limited; typical availability is rare.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
Lindcott Armory