Rifle · Obsolete
.300 Sherwood
Obscure British single-shot sporting cartridge.
- Caliber
- 0.3″ · 7.62 mm
- Introduced
- 1879
- Case
- Rimmed
- Primary use
- hunting
- Status
- Obsolete
- Introduced
- 1879
- Type
- Rifle
- Origin
- United Kingdom
- Manufacturer
- British gunmakers
- Standard
- Obsolete
- Status
- Obsolete
- Availability
- Antique
- Case capacity
- 38 gr H₂O
- Twist (typical)
- 1:10
- Primer
- Large Rifle
- Case type
- Rimmed
- Max pressure
- 18,000 psi
- Eff. range
- 100 yd
- Recoil
- 12–18 ft·lb
- Subsonic
- Capable
Ballistics
Published velocity/energy data isn't available for .300 Sherwood — an obsolete/collector cartridge.
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 · secondary source| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.62 | 0.300 | · |
| Neck ⌀ | 8.08 | 0.318 | · |
| Shoulder ⌀ | n/a | ||
| Shoulder angle | n/a | ||
| Base ⌀ | 8.13 | 0.320 | · |
| Rim ⌀ | 9.40 | 0.370 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.14 | 0.045 | ~ |
| Neck length | n/a | ||
| Case length | 39.12 | 1.540 | · |
| Overall length | 51.31 | 2.020 | · |
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. .300 Sherwood is highlighted below.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
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.
Connected reference
History
A specialized proprietary cartridge developed in the late Victorian era for the Sherwood self-contained shotgun system. Very low velocity black powder load designed for quiet pest control use. One of many specialized Victorian cartridge variants that did not survive the transition to smokeless powder.
FAQs
- What twist rate does .300 Sherwood use?
- .300 Sherwood typically uses a 1:10 twist rate.
- What bullet diameter is .300 Sherwood?
- .300 Sherwood uses a 0.3″ (7.62 mm) diameter bullet.
- Is .300 Sherwood still in production?
- .300 Sherwood is obsolete; typical availability is antique.
- What is .300 Sherwood used for?
- .300 Sherwood is primarily used for hunting.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 11 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →