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== Factory Loads ==Ammunition manufacturers tend to use proprietary gunpowder types of their "own special recipe." Powder weight, in grains, is completely meaningless if you do not know the powder type being used. Manufacturers will rarely release specifications on the burn rate of their powder and the amount of powder they use in a particular cartridge. All ammunition manufacturers load ammunition to SAAMI (Sporting Arms and Ammunition Manufacturers' Institute) specifications.Remember, powder capacity is not the same as powder load. A .30-06 rifle cartridge has a case capacity of 68.2 grains, however, loading to that capacity may result in destruction of your rifle and serious injury when using most common smokeless powder types. It could be accomplished as a hot load with a slow burning powder. == Nomenclature ==Consider a 30-30 rifle cartridge, which has been around since the early days of smokeless powder. The name designation has significance in that it refers to having a 30 caliber bullet on 30 grains of smokeless powder. The 30-40 Kraig military cartridge comes from the same naming convention, a 30 caliber bullet on 40 grains of smokeless powder. This naming convention is no longer used.== History ==Black powder has a low energy density compared to modern "smokeless" powders, and thus to achieve high energy loadings, large amounts of black powder are needed with heavy projectiles.