With federal legislation pending to finally allow the over-the-counter-sale of firearm suppressors, the .300 Blackout cartridge, already popular, will undoubtedly become even more popular.
The .300 Blackout is one of the only cartridges specifically designed to restrict the velocity of relatively heavy bullets to just below the speed of sound. That’s because much of the sound from rifle fire is the “mini sonic boom” created by the bullet breaking the sound barrier as it travels through the air.
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