Rifle · SAAMI standardized
.22 Extra Long
Obsolete rimfire cartridge bridging .22 Long and early .22 LR.
- Caliber
- 0.223″ · 5.664 mm
- Introduced
- 1880
- Case
- Rimfire
- Primary use
- Small Game, Target
- Status
- Discontinued
- Introduced
- 1880
- Type
- Rifle
- Origin
- United States
- Inventor
- Various / American commercial
- Manufacturer
- Various
- Standard
- SAAMI standardized
- Status
- Discontinued
- Availability
- Collector
- Case capacity
- 12 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Rimfire
- Case type
- Rimfire
- Max pressure
- 18,000 psi
- Eff. range
- 75 yd
- Max range
- 200 yd
- Recoil
- 0.3–0.8 ft·lb
- Subsonic
- Capable
Ballistics
Published velocity/energy data isn't available for .22 Extra Long — an obsolete/collector cartridge.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.66 | 0.223 | ~ |
| Neck ⌀ | 5.71 | 0.225 | ✓ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 5.71 | 0.225 | ✓ |
| Rim ⌀ | 6.99 | 0.275 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.09 | 0.043 | ✓ |
| Neck length | n/a | ||
| Case length | 19.05 | 0.750 | ✓ |
| Overall length | 29.46 | 1.160 | ✓ |
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. .22 Extra Long is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Firearms chambered in .22 Extra Long
1 model in the database chamber .22 Extra Long. Browse all →
Connected reference
History
Developed circa 1880 for gallery rifles and small-game shooting. Was superseded by the .22 Long Rifle, which offered better accuracy at longer case length. Ammunition production ended by the early 20th century; original chambered revolvers and rifles are collector items.
FAQs
- What twist rate does .22 Extra Long use?
- .22 Extra Long typically uses a 1:16 twist rate.
- What bullet diameter is .22 Extra Long?
- .22 Extra Long uses a 0.223″ (5.664 mm) diameter bullet.
- Is .22 Extra Long still in production?
- .22 Extra Long is discontinued; typical availability is collector.
- What is .22 Extra Long used for?
- .22 Extra Long is primarily used for small game, target.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 20 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →