Originally Posted By streetstar:
The 300 BLK is obviously picking up steam in the popularity contest –––– i had heard tell that this was basically JD Jones old .300 Whisper cartridge he popularized in silenced Contenders years ago , but given a more "black-ops" sounding name for the AR market.
Is there a ring of truth to this or do the cartridges have some differences ?
I'll try to do a little more reading outside ARFCOM too –– i am contemplating building one up ––- the cartridge's linege doesnt really affect my decision, but was just curious ––––
As an aside, i wish Remington's fat little .30 RAR would pick up some steam in the aftermarket ––- maybe the different bolt head is holding it back , but velocities are close to .308 category with that one
The 300BLK took all the problems that the whisper had and eliminated them. The biggest being the 300BLK is SAAMI approved so every 300BLK is the same as the other BLK. AAC also made the the throat a little larger to accommodate brass that is cut down from .223 instead of Necked up from .221 fireball. The 300BLK can also run a little hotter than the Whisper.
The best reason for the 300BLK for the consumer is that it now cost half of what JD wanted for his rifles and 1/3rd of what the ammo cost. There are now a ton of manufactures for the ammo, rifles, brass and barrels instead of just one or a couple knock offs.