Rifle · SAAMI
.348 Winchester
Powerful lever-action cartridge developed specifically for the Winchester Model 71.
- Caliber
- 0.348″ · 8.839 mm
- Introduced
- 1936
- Case
- Semi-Rimmed
- Parent
- .50-110 Winchester
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1936
- Type
- Rifle
- Origin
- United States
- Inventor
- Winchester
- Manufacturer
- Winchester Ammunition
- Standard
- SAAMI
- Status
- Active
- Availability
- Limited
- Case capacity
- 72.5 gr H₂O
- Twist (typical)
- 1:12
- Primer
- Large Rifle
- Case type
- Semi-Rimmed
- Max pressure
- 40,000 psi
- Eff. range
- 250 yd
- Max range
- 500 yd
- Recoil
- 8–12 ft·lb
Introduced by Winchester Ammunition
Ballistics
Published velocity/energy data isn't available for .348 Winchester. Parent case: .50-110 Winchester.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
reloading data · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 8.84 | 0.348 | ✓ |
| Neck ⌀ | 9.61 | 0.379 | ~ |
| Shoulder ⌀ | 12.32 | 0.485 | ✓ |
| Shoulder angle | 19.1° | — | ✓ |
| Base ⌀ | 14.05 | 0.553 | ✓ |
| Rim ⌀ | 15.49 | 0.610 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.78 | 0.070 | ✓ |
| Neck length | 11.46 | 0.451 | ≈ |
| Case length | 57.28 | 2.255 | ✓ |
| Overall length | 70.99 | 2.795 | ✓ |
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. .348 Winchester is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Suitable powders
3 reloading powders listed for .348 Winchester, 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 .348 Winchester
3 models in the database chamber .348 Winchester. Browse all →
Lineage
necked to .348
Connected reference
History
Introduced in 1936 for the Winchester Model 71, an improved version of the Model 1886. Designed as a heavy-brush and timber hunting cartridge, the .348 was popular in the Pacific Northwest and Alaska. Winchester discontinued the Model 71 in 1958 and nearly discontinued the cartridge, but collector demand and Browning's reproduction Model 71 kept it alive. Ballard-type falling-block reproductions also chamber it.
FAQs
- What twist rate does .348 Winchester use?
- .348 Winchester typically uses a 1:12 twist rate.
- What bullet diameter is .348 Winchester?
- .348 Winchester uses a 0.348″ (8.839 mm) diameter bullet.
- Is .348 Winchester still in production?
- .348 Winchester is active; typical availability is limited.
- What is .348 Winchester used for?
- .348 Winchester is primarily used for hunting.
- What is .348 Winchester based on?
- .348 Winchester is derived from the .50-110 Winchester case.
- What are the best powders for .348 Winchester?
- Reloading powders commonly listed for .348 Winchester include Leverevolution, IMR 3031, H380.
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 →