Rimfire · Obsolete / Non-standard
.17 Aguila
Ultra-quiet rimfire using .22 LR case necked to .17 caliber, produced by Aguila.
- Caliber
- 0.172″ · 4.369 mm
- Introduced
- 2004
- Case
- Rimfire
- Parent
- .22 Long Rifle
- Primary use
- Varminting
- Status
- Discontinued
- Introduced
- 2004
- Type
- Rimfire
- Origin
- Mexico
- Inventor
- Aguila Ammunition
- Manufacturer
- Aguila
- Standard
- Obsolete / Non-standard
- Status
- Discontinued
- Availability
- Collector
- Case capacity
- 3.4 gr H₂O
- Twist (typical)
- 1:9
- Primer
- Rimfire
- Case type
- Rimfire
- Max pressure
- 25,000 psi, SAAMI transducer
- Eff. range
- 100 yd
- Max range
- 1800 yd
- Recoil
- 0.1 ft·lb
- Subsonic
- Capable
Introduced by Aguila
Ballistics
Published velocity/energy data isn't available for .17 Aguila — an obsolete/collector cartridge. Parent case: .22 Long Rifle.
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 ⌀ | 4.37 | 0.172 | ~ |
| Neck ⌀ | 4.58 | 0.180 | |
| Shoulder ⌀ | 5.62 | 0.221 | |
| Shoulder angle | 20° | — | |
| Base ⌀ | 5.74 | 0.226 | |
| Rim ⌀ | 6.88 | 0.271 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.09 | 0.043 | ~ |
| Neck length | 4.51 | 0.178 | |
| Case length | 15.01 | 0.591 | ~ |
| Overall length | 24.99 | 0.984 | ~ |
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. .17 Aguila is highlighted below.
Missing a dimension for .17 Aguila? 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.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Lineage
History
Developed by Aguila Ammunition of Mexico in the early 2000s. Created by necking down the .22 LR rimfire case to accept .17 caliber bullets. Offered a quieter alternative to high-velocity .17 calibers for pest control. Production was limited and sporadic.
FAQs
- What twist rate does .17 Aguila use?
- .17 Aguila typically uses a 1:9 twist rate.
- What bullet diameter is .17 Aguila?
- .17 Aguila uses a 0.172″ (4.369 mm) diameter bullet.
- Is .17 Aguila still in production?
- .17 Aguila is discontinued; typical availability is collector.
- What is .17 Aguila used for?
- .17 Aguila is primarily used for varminting.
- What is .17 Aguila based on?
- .17 Aguila is derived from the .22 Long Rifle case.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 3 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
