7x61 Sharpe & Hart Magnum | ||||||||||||||||
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Type | Rifle | |||||||||||||||
Place of origin | Oakland, California, U.S. | |||||||||||||||
Production history | ||||||||||||||||
Designer | Philip Sharpe and Richard Hart | |||||||||||||||
Designed | 50s | |||||||||||||||
Manufacturer | Norma | |||||||||||||||
Specifications | ||||||||||||||||
Case type | rimless, belted | |||||||||||||||
Bullet diameter | .284 in (7.2 mm) | |||||||||||||||
Rim diameter | .532 in (13.5 mm) | |||||||||||||||
Rim thickness | .040 in (1.0 mm) | |||||||||||||||
Case length | 2.394 in (60.8 mm) | |||||||||||||||
Overall length | 3.27 in (83 mm) | |||||||||||||||
Ballistic performance | ||||||||||||||||
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Source(s): Hornady Handbook of Cartridge Reloading |
The 7×61mm Sharpe & Hart Magnum belted cartridge (A.K.A. 7mm S&H Super [1]) was developed by Philip B. Sharpe and Richard (Dick) Hart in the 1950s. Some articles claim it was based on the .300 H&H Magnum case, [1] [2] while others claim it was based on the 7x61 MAS M1907 case. [3] [4]
In 1953 Sharpe & Hart traveled to Scandinavia, where they developed the cartridge. [2] [4] Schultz & Larsen of Denmark chambered the cartridge in their bolt-action rifles. Norma manufactured commercial ammunition, but later discontinued the line. While the 7×61mm S&H proved to be popular, mostly outside of the United States, [1] it led was overshadowed once the 7mm Remington Magnum was released. [2] While commercial brass is no longer produced on a large scale, ammunition and cases are available from some custom manufacturers. [5] [6] Reloaders have a variety of bullets to choose from, and Hornady lists load data for the cartridge. [4] Reloaders should be aware of whether their rifle does, or does not, have freebore before using load data developed with more modern components. [7] Cases can also be formed from 7mm Remington Magnum cases. [8]