The Sporting Arms and Ammunition Manufacturers Institute (SAAMI), sets voluntary national standards for ammunition and firearm design
There are many manufacturers that are members of SAMMI (Sporting Arms and Ammunition Manufactures Institute) including Glock, Hornady, Nosler, and Savage Arms.
The ballistics information for each bullet and cartridge. Hornady publishes data for ammunition derived from testing utilizing SAAMI (Sporting Arms and Ammunition Manufacturers Institute) specification test barrels.
From the Wikipedia article on the .308 Winchester:"Although very similar to the military 7.62mmx51mm NATO, specifications for the .308 cartridge are not identical and there are special considerations that may apply when mixing one cartridge with differently chambered arms."Keep in mind, however, that the Sporting Arms and Ammunition Manufacturers Institute (SAAMI) renders them interchangeable.
Manufacturers. Finding out would take anywhere from a few days to a few years depending on how much money you have.
From SAAMI: With the appearance of full metal jacket military 5.56 ammunition on the commercial Market, it has come to the attention of the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) that the use of military 5.56mm ammunition in sporting rifles chambered for Caliber .223 Remington cartridges can lead to higher-than-normal chamber pressures and possible hazards for the firearm, its user and bystanders. Tests have confirmed that chamber pressures in a sporting rifle may be significantly higher in the same gun when using military 5.56mm ammunition rather than commercially loaded Caliber .223 Remington cartridges, according to SAAMI. SAAMI points out that chambers for military rifles have a different throat configuration than chambers for sporting firearms which, together with the full metal jacket of the military projectile, may account for the higher pressures which result when military ammunition is fired in a sporting chamber. SAAMI recommends that a firearm be fired only with the cartridge for which it is specifically chambered by the manufacturer. yes, the military size is the same as 223 ammo, although powder loads may be higher in the military ammo
Most of the ammunition made by manufacturers in this industry is sold to private consumers: 44 percent in 1992, up from 40 percent of industry sales in the 1980s.
those manufacturing small arms ammunition are classified in SIC 3482: Small Arms Ammunition
NAICS Code(s) 332992 (Small Arms Ammunition Manufacturing)
c. they had arms and ammunition provided by the british
DPMS/Panther Arms is owned by The Freedom Group which owns a wide variety of firearms and ammunition manufacturers including Bushmaster, Remington, H&R, etc...
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