Shotgun · Proprietary

8 Gauge

8 bore8-bore8 gauge shotgun

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
Identity
Introduced
1860
Type
Shotgun
Origin
United Kingdom
Inventor
Various
Standard
Proprietary
Status
Limited
Availability
Rare
Build
Primer
Shotgun
Case type
Rimmed
Pressure & range
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
Measuremmin
Bullet ⌀21.210.835·
Neck ⌀
Shoulder ⌀n/a
Shoulder anglen/a
Base ⌀23.190.913~
Rim ⌀25.350.998~
Belt ⌀n/a
Rim thickness
Neck lengthn/a
Case length82.553.250·
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 →

Holland & Holland ParadoxBaker Firearms Baker Model 1880

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 →