.500 Jeffery

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.500 Jeffery
Type	Rifle
Place of origin	England
Production history
Designer	August Schuler
Designed	~1920
Specifications
Parent case	none
Case type	Rimless, Bottleneck
Bullet diameter	0.51 in (13.0 mm)
Rifling twist	unknown
Ballistic performance
Bullet weight/type	Velocity	Energy
570 gr (37 g) Soft Nose	2,200 ft/s (670 m/s)	6,127 ft·lbf (8,307 J)
570 gr (37 g) Barnes TSX	2,507 ft/s (764 m/s)	7,957 ft·lbf (10,788 J)
535 gr (34.7 g) SP	2,549 ft/s (777 m/s)	7,721 ft·lbf (10,468 J)
600 gr (39 g) PP	2,468 ft/s (752 m/s)	8,117 ft·lbf (11,005 J)
465 gr (30.1 g) Lehigh Solid	2,551 ft/s (778 m/s)	6,721 ft·lbf (9,112 J)
Test barrel length: 24" Source: Norma Ammunition RealGuns reloading data

The .500 Jeffery is a caliber of rifles that first appeared around 1920, and was originally introduced by the August Schuler Company, a German firm, under the European designation "12,7x70 mm Schuler." When offered by the famed British outfitter Jeffery's Guns, Rifles [sic], it was renamed the .500 Jeffery so as to be more palatable to British hunters and sportsmen^[1].

Contents 1 History 2 Ammunition availability 3 See also 4 References 5 External links

[edit] History

When introduced, the .500 Jeffery was the most powerful rifle cartridge in existence and remained so prior to World War II. Although the 505 Gibbs was introduced before the .500 Jeffery in 1911, the Gibbs has only recently been loaded to the higher modern pressures at which it becomes more powerful than the Jeffery. Prior to WWII, the Jeffery was loaded to higher pressures than the Gibbs and was thus more powerful.^[2]

[edit] Ammunition availability

Like the 505 Gibbs, the .500 Jeffery is enjoying somewhat of a renaissance among American shooters and African Big Game hunters in the early 21st century, almost 100 years after their introduction ^[3]. As of 2009, Norma, Kynoch, and Westley Richards are offering loaded ammunition in 500 Jeffery. There may be other manufacturers as well.

[edit] See also

• .505 Gibbs
• .500 Nitro Express
• .500 No. 2 Express
• .577/.500 Magnum Nitro Express
• .577 Tyrannosaur
• .50 BMG
• List of rifle cartridges
• 12mm (.472-.511) Cartridges

[edit] References

1. ^ The .500 Jeffery Project
2. ^ Norma Ammunition
3. ^ African Conservation Foundation

[edit] External links

• African Conservation Foundation on .505 Gibbs and .500 Jeffrey
• AccurateReloading.Com on the .500 Jeffery
• Norma Ammunition .500 Jeffery page
• RealGuns.com page on .500 Jeffery reloading data
• RealGuns: The 500 Jeffery Project (Part I)
• RealGuns: The 500 Jeffery Project (Part II)
• Kynoch Ammunition