Rifle · Not SAAMI standardized · Not standardizedObsolete
.32 Extra Long
Blackpowder .32-caliber cartridge; the parent case of the .25-20 Single Shot (necked down by J.
- Caliber
- 0.316″ · 8.026 mm
- Introduced
- 1882
- Case
- Rimmed
- Primary use
- Target, Small game
- Status
- Obsolete
- Obsolete
- Obsolete
- Introduced
- 1882
- Type
- Rifle
- Origin
- United States
- Inventor
- Union Metallic Cartridge Co. (approx: maker of record)
- Manufacturer
- Remington Ammunition
- Standard
- Not SAAMI standardized · Not standardized
- SAAMI
- Not SAAMI standardized
- Obsolete
- Obsolete
- Status
- Obsolete
- Availability
- Collector
- Case capacity
- 16.2 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Small Rifle
- Case type
- Rimmed
- Max pressure
- 18,000 CUP, SAAMI crusher
- Eff. range
- 100 yd
- Max range
- 2200 yd
- Recoil
- 1 ft·lb
- Subsonic
- Capable
Introduced by Remington Ammunition
Ballistics
Velocity only, no drag model: no published ballistic coefficient is on file for .32 Extra Long, so this is the shape gravity alone gives the advertised velocity. Drag would steepen it. The tool below solves real loads through their published G1 or G7 model.
Open in Ballistic Compare- Parent case
- —
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
Wikipedia · secondary source| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 8.03 | 0.316 | · |
| Neck ⌀ | 8.08 | 0.318 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 8.08 | 0.318 | · |
| Rim ⌀ | 9.58 | 0.377 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.12 | 0.044 | |
| Neck length | n/a | ||
| Case length | 29.21 | 1.150 | · |
| Overall length | 36.89 | 1.452 | |
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. .32 Extra Long is highlighted below.
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.
Lineage
Connected reference
History
A late-19th-century .32 blackpowder cartridge (a.k.a. .32 Wesson / .32 Extra Long); Rabbeth necked it down to .25 to create the .25-20 Single Shot in 1882.
FAQs
- What twist rate does .32 Extra Long use?
- .32 Extra Long typically uses a 1:10 twist rate.
- What bullet diameter is .32 Extra Long?
- .32 Extra Long uses a 0.316″ (8.026 mm) diameter bullet.
- Is .32 Extra Long still in production?
- .32 Extra Long is obsolete; typical availability is collector.
- What is .32 Extra Long used for?
- .32 Extra Long is primarily used for target, small game.
Sources & provenance
- Reference Gun Digest / Krause (F+W Media) — Cartridges of the World — Obsolete American Rimfire section (.32 Extra Long) · velocity, grain weights, bullet ⌀
- Secondary Powder & Lead (powderandlead.net) — The .32 Rimfire Cartridge: History, Ballistics & All Variants · grain weights, velocity archived
Data & sources. Specs compiled from the Lindcott Armory reference; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
