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Charles Newton (inventor) : ウィキペディア英語版 | Charles Newton (inventor)
==History== A lawyer and firearm enthusiast, Charles (Chas.) Newton's experiments with cartridge design led to the creation of the .22 Savage Hi-Power rifle cartridge which was adopted by the Savage Arms Corporation as a commercial firearm cartridge. This success was soon followed by the design of the .250-3000 Savage. At this period in time, Charles also experimented with wildcats based on the .30-06 Springfield case, most notably creating a forerunner of the .25-06 Remington. This cartridge was first introduced as the .25 Newton Special. There were probably no firearms produced in this caliber by Netwon. It soon evolved into the .256 Newton designed to use, at first, a 123 grain bullet followed by later upgrades to 129 grain and 140 grain bullets. Newton's premise was to use a large case for each caliber he developed in order for the larger powder charge to propel the bullet at high velocity resulting in effective terminal ballistics. Newton developed several calibers. The best known are the .22 Newton (90 grain bullet), .256 Newton, .30 Newton (180 grain bullet), .33 Newton (200 grain bullet), .35 Newton (250 grain bullet) and .40 Newton (300 grain bullet). From 1914 until the late 1920s, he entered into various endeavours to promote and sell rifles in his proprietary calibers.
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