300 PRC Standard Brass 500 rounds


300 prc

The 300 Precision Rifle Cartridge cartridge case capacity is 6.2 ml (95.5 grains) H2O


The .375 Ruger cartridge has functioned as the parent case for the 300 Precision Rifle Cartridge (300 PRC), which is essentially a necked-down version of the .375 Ruger. The American ammunition manufacturer Hornady got the 300 Precision Rifle Cartridge SAAMI-standardized in 2018. In 2019 it got C.I.P.-standardized as the 300 PRC.The 300 Precision Rifle Cartridge cartridge case capacity is 6.2 ml (95.5 grains) H2O. The .375 Ruger cartridge case was used by Hornady as the basis for a new extra long range cartridge since it had the capability to operate with high chamber pressures which, combined with a neck and barrel throat optimized for loading relatively long and heavy .308 diameter very-low-drag bullets without the need to seat the bullets deeply recessed into the case result in adequate muzzle velocities from magnum sized bolt-action rifles. Rifles chambered for the 300 Precision Rifle Cartridge must be capable of handling 3.70 in (93.98 mm) overall length cartridges.

ADG .300 PRC (Precision Rifle Cartridge) brass was designed not only for consistency, but for durability.  One of the ways we accomplished this was adding material to the case in specific areas to strengthen it.  With the additional material, our brass is heavier than most other manufacturers brass and therefore will require lower charge weights to achieve the same pressures and velocities due to the reduced volume inside the brass.  We recommend using a reputable load data source and working up from their recommended minimum starting loads.  Failure to reduce charge weights established using other manufacturers brass may result in higher pressures and velocities while using ADG brass and may result in unsafe pressure levels. 


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