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]
