The 30 Newton was originally designed for Fred Adolph and was called the �Adolph Express� when introduced in 1913. The 30 Newton is a rimless, magnum type cartridge similar to the 30-06 Springfield, but is larger in diameter. It is powerful enough for any North American big game. The 300 H&H; Magnum and 300 Weatherby Magnum outperforms it, although its performance can be improved by handloading with modern powders. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.