Lindcott Armory Rifle · Obsolete
.333 Jeffery
Jeffrey's powerful British rifle cartridge for dangerous game.
- Introduced
- 1908
- Type
- Rifle
- Origin
- United Kingdom
- Inventor
- W.J. Jeffery & Co.
- Manufacturer
- W.J. Jeffery & Co.
- Standard
- Obsolete
- Status
- Obsolete
- Availability
- Antique
- Bullet ⌀
- 0.333″
- Case capacity
- 78 gr H₂O
- Twist
- 1:10
- Primer
- Boxer Large Rifle
- Case type
- Rimless
- Max pressure
- 47,000 psi
- Eff. range
- 400 yd
- Recoil
- 12–18 ft·lb
Ballistics
- Velocity
- 2,400–2,500 fps
- Energy
- 3,199–3,474 ft·lb
- By real loads
- 2,200–2,500 fps · 20 loads
- Typical MSRP
- $1.60/rd · price history →
- Parent case
- —
Representative trajectory — modeled from a single velocity input, not a measured load. Real published loads span the "by real loads" range above.
Factory loads
In production — 20 active loads across 14 brands. Top 15 shown · see all 20 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC | $/rd |
|---|---|---|---|---|---|---|---|
| Norma | Norma African | 250 | SP | 2,500 | 3,469 | — | $1.60 |
| A-Square | A-Square Lion | 250 | Dead Tough SP | 2,500 | 3,469 | — | — |
| Northfork | Northfork Safari | 250 | FMJ Solid | 2,500 | 3,469 | — | — |
| John Rigby & Co. | Rigby Classic | 250 | SP | 2,500 | 3,469 | — | — |
| Norma | Norma Standard | 250 | SP | 2,500 | 3,469 | — | $1.60 |
| Graf | Graf Standard | 250 | SP | 2,500 | 3,469 | — | $0.75 |
| Bertram | Bertram Standard | 250 | SP | 2,500 | 3,469 | — | $4.50 |
| RWS | RWS Standard | 250 | SP | 2,500 | 3,469 | — | $1.80 |
| Buffalo Arms | Buffalo Arms Standard | 250 | SP | 2,500 | 3,469 | — | $2.80 |
| PPU | PPU Standard | 250 | SP | 2,500 | 3,469 | — | $0.55 |
| Sellier & Bellot | S&B Standard | 250 | SP | 2,500 | 3,469 | — | $0.65 |
| Kynoch | Kynoch Standard | 250 | SP | 2,500 | 3,469 | — | $8.00 |
| Woodleigh | SP | 250 | SP | 2,400 | 3,197 | — | — |
| Woodleigh | Weldcore | 250 | Weldcore SP | 2,400 | 3,197 | — | — |
| Kynoch | Soft Nose | 250 | SP | 2,200 | 2,686 | — | $8.00 |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Reloading cost
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
Developed by W.J. Jeffery & Co. of London around 1908. Designed for African dangerous game, the .333 Jeffery launched 300-grain bullets at modest velocity with excellent sectional density for deep penetration. Influenced later .338 caliber cartridges; especially .338 Winchester Magnum which is its spiritual successor.
FAQs
- What twist rate does .333 Jeffery use?
- .333 Jeffery typically uses a 1:10 twist rate.
- What bullet diameter is .333 Jeffery?
- .333 Jeffery uses a 0.333″ (8.46 mm) diameter bullet.
- Is .333 Jeffery still in production?
- .333 Jeffery is obsolete; typical availability is antique.
- What is .333 Jeffery used for?
- .333 Jeffery is primarily used for hunting.
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 20 live factory loads; the trajectory is modeled (point-mass), not measured. Spotted an error? Report it →