Shotgun · SAAMI
16 Gauge
The gentleman's gauge.
- Caliber
- 0.6614″ · 16.8 mm
- Introduced
- 1866
- Case
- Rimmed
- Primary use
- Upland Game, Waterfowl
- Status
- Active
- Introduced
- 1866
- Type
- Shotgun
- Origin
- United Kingdom
- Inventor
- Various (historical)
- Manufacturer
- Various
- Standard
- SAAMI
- Status
- Active
- Availability
- Common
- Twist (typical)
- N/A (smoothbore)
- Primer
- 209 Shotshell
- Case type
- Rimmed
- Max pressure
- 11,500 psi
- Eff. range
- 50 yd
- Max range
- 150 yd
- Recoil
- 18–26 ft·lb
- Subsonic
- Capable
Ballistics
Published velocity/energy data isn't available for 16 Gauge.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
CIP TDCC · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 16.80 | 0.661 | · |
| Neck ⌀ | 18.55 | 0.730 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 18.90 | 0.744 | ~ |
| Rim ⌀ | 20.65 | 0.813 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.65 | 0.065 | · |
| Neck length | n/a | ||
| Case length | 69.85 | 2.750 | · |
| Overall length | 62.87 | 2.475 | ~ |
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. 16 Gauge is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
1 reloading powder listed for 16 Gauge, fastest to slowest. Cross-reference in the finder →
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 16 Gauge
12 models in the database chamber 16 Gauge. Browse all →
Connected reference
History
Popular through the 19th and early 20th centuries as the upland game gauge of choice in Europe and America. Declined after WWII as 12 gauge and 20 gauge shells improved. Experiencing a modest revival among traditionalists.
FAQs
- What twist rate does 16 Gauge use?
- 16 Gauge typically uses a N/A (smoothbore) twist rate.
- What bullet diameter is 16 Gauge?
- 16 Gauge uses a 0.6614″ (16.8 mm) diameter bullet.
- Is 16 Gauge still in production?
- 16 Gauge is active; typical availability is common.
- What is 16 Gauge used for?
- 16 Gauge is primarily used for upland game, waterfowl.
- What are the best powders for 16 Gauge?
- Reloading powders commonly listed for 16 Gauge include International Clays.
Sources & provenance
- Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
- Standard C.I.P. — C.I.P. TDCC — Tables of Dimensions of Cartridges and Chambers
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 138 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →