Rimfire · SAAMI
.22 Long
The intermediate step between .22 Short and .22 LR — now largely obsolete but still produced for guns that don't cycle .22 LR..
- Caliber
- 0.2252″ · 5.72 mm
- Introduced
- 1871
- Case
- Rimfire
- Parent
- .22 Short
- Primary use
- Small Game, Pest Control
- Status
- Active
- Introduced
- 1871
- Type
- Rimfire
- Origin
- United States
- Inventor
- Various
- Manufacturer
- Various
- Standard
- SAAMI
- Status
- Active
- Availability
- Common
- Case capacity
- 2 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Rimfire
- Case type
- Rimfire
- Max pressure
- 24,000 psi
- Eff. range
- 75 yd
- Max range
- 250 yd
- Recoil
- 0.2–0.5 ft·lb
- Subsonic
- Capable
Ballistics
Published velocity/energy data isn't available for .22 Long. Parent case: .22 Short.
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 ⌀ | 5.72 | 0.225 | ~ |
| Neck ⌀ | 5.72 | 0.225 | ✓ |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 5.74 | 0.226 | ✓ |
| Rim ⌀ | 7.06 | 0.278 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.09 | 0.043 | ✓ |
| Neck length | n/a | ||
| Case length | 15.57 | 0.613 | ✓ |
| Overall length | 22.56 | 0.888 | ✓ |
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 Long is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Firearms chambered in .22 Long
12 models in the database chamber .22 Long. Browse all →
Lineage
Connected reference
History
Introduced in 1871 as a longer case version of the .22 Short. Uses the same bullet as .22 Short in a longer case for more powder and velocity. The .22 LR arrived in 1887 and made the .22 Long largely redundant.
FAQs
- What twist rate does .22 Long use?
- .22 Long typically uses a 1:16 twist rate.
- What bullet diameter is .22 Long?
- .22 Long uses a 0.2252″ (5.72 mm) diameter bullet.
- Is .22 Long still in production?
- .22 Long is active; typical availability is common.
- What is .22 Long used for?
- .22 Long is primarily used for small game, pest control.
- What is .22 Long based on?
- .22 Long is derived from the .22 Short case.
Sources & provenance
- Standard SAAMI — SAAMI cartridge & chamber drawing — .22 Long 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 18 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →