Lindcott Armory Rifle · SAAMI
.307 Winchester
Semi-rimmed lever-action version of .308 Winchester, designed for the Winchester Model 94 Big Bore.
- Caliber
- 0.3079″ · 7.82 mm
- Introduced
- 1982
- Case
- Semi-Rimmed
- Parent
- .308 Winchester
- Primary use
- Hunting
- Status
- Active
- Introduced
- 1982
- Type
- Rifle
- Origin
- United States
- Inventor
- Winchester
- Manufacturer
- Winchester
- Standard
- SAAMI
- Status
- Active
- Availability
- Limited
- Case capacity
- 46 gr H₂O
- Twist (typical)
- 1:12
- Primer
- Large Rifle
- Case type
- Semi-Rimmed
- Max pressure
- 52,000 psi
- Eff. range
- 250 yd
- Max range
- 600 yd
- Recoil
- 12–16 ft·lb
Ballistics
- By real loads
- 2,510–2,650 fps · 13 loads
- Parent case
- .308 Winchester
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open .307 Winchester ammunition at Rivertown Munitions.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · verified| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.82 | 0.308 | ✓ |
| Neck ⌀ | 8.72 | 0.344 | ✓ |
| Shoulder ⌀ | 11.53 | 0.454 | ✓ |
| Shoulder angle | 20° | — | ✓ |
| Base ⌀ | 11.95 | 0.470 | ✓ |
| Rim ⌀ | 12.85 | 0.506 | ✓ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.60 | 0.063 | ✓ |
| Neck length | 7.71 | 0.304 | ≈ |
| Case length | 51.18 | 2.015 | ✓ |
| Overall length | 65.02 | 2.560 | ✓ |
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. .307 Winchester is highlighted below.
Factory loads
In production — 13 active loads across 7 brands. Top 14 shown.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| Hornady | LEVERevolution FTX | 160 | FTX | 2,650 | 2,494 | — |
| Barnes | TTSX | 160 | TSX-BT | 2,600 | 2,401 | — |
| Nosler | Trophy Grade Partition | 170 | Partition | 2,550 | 2,454 | — |
| Remington | Express Core-Lokt SP | 180 | Core-Lokt SP | 2,510 | 2,518 | — |
| Winchester | Power Point SP | 180 | Power Point SP | 2,510 | 2,518 | — |
| Winchester | Super-X SP | 180 | SP | 2,510 | 2,518 | — |
| Winchester | Super-X | 180 | Power-Point | 2,510 | 2,518 | — |
| Winchester | Super-X PP SP | 180 | Power-Point SP | 2,510 | 2,518 | — |
| Remington | Core-Lokt | 180 | SP | 2,510 | 2,518 | — |
| Black Hills | Gold | 180 | AccuBond | 2,510 | 2,518 | — |
| Nosler | Partition | 180 | Partition | 2,510 | 2,518 | — |
| Hornady | InterLock | 180 | SP | 2,510 | 2,518 | — |
| Federal | Power-Shok | 180 | SP | 2,510 | 2,518 | — |
| Remington | Core-Lokt PSP | 180 | Core-Lokt PSP | 2,510 | 2,518 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Suitable powders
1 reloading powder listed for .307 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 .307 Winchester
1 model in the database chamber .307 Winchester. Browse all →
Lineage
Connected reference
History
Introduced in 1982 alongside the .356 Winchester for the Model 94 Big Bore. The semi-rimmed design provides reliable lever-action feed and extraction while delivering .308-class ballistics previously unavailable in a lever rifle. Factory ammunition is still produced by Winchester. The Model 94 Big Bore is discontinued but used rifles and factory ammo remain available.
FAQs
- What twist rate does .307 Winchester use?
- .307 Winchester typically uses a 1:12 twist rate.
- What bullet diameter is .307 Winchester?
- .307 Winchester uses a 0.3079″ (7.82 mm) diameter bullet.
- Is .307 Winchester still in production?
- .307 Winchester is active; typical availability is limited.
- What is .307 Winchester used for?
- .307 Winchester is primarily used for hunting.
- What is .307 Winchester based on?
- .307 Winchester is derived from the .308 Winchester case.
- What are the best powders for .307 Winchester?
- Reloading powders commonly listed for .307 Winchester include IMR 3031.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 13 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →