Troy Industries is best known for the rifle that replaced what model in the US Army by 1961?
Troy Industries Troy Industries, Inc. is an American manufacturer of firearms and firearm parts based in West Springfield, Massachusetts. It is the manufacturer of parts on the Smith & Wesson M&P15 and is a United States government contractor. Troy is best known for its M14 rifle parts and its M7A1 carbine, which was reviewed by the United States armed forces when drafting requirements for a replacement of the M4 carbine.
6mm Remington The 6mm Remington rifle cartridge, originally introduced in 1955 by Remington Arms Company as the .244 Remington, is based on a necked down .257 Roberts cartridge using a .24/6mm bullet. Known for a combination of high velocity, long range, and accuracy, it is suitable as a dual use hunting cartridge for both varmints and medium-sized big game. When used in the less common earlier slow twist barrels, it offers exceptional range for varmint applications. While not as commercially popular today as the .243 Winchester, the 6mm Remington enjoys a slightly ballistic advantage and continues to be popular with handloaders and custom rifle builders.