Personally i have always been a .308 type of guy, as reliable and lethal for a broader range of game sizes. Its my go to caliber for deer, moose and bear hunting as many would agree. However in 2011 a company by the name of Advanced Armament Corporation (AAC) released to market the .300 Blackout cartridge (.300 BLK) or 7.62 x 35mm. It was derived from the .300 whisper platform specifically for use in the US military M4 and M4A1 platform standard issue rifles. Available at the time only to special forces in the form of subsonic ammunition designed for suppressed rifle barrels typically the 115 gr, then later made available to the public in various weights (gr.).

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.300 Blackout vs .308 Win – Cartridge Comparison
Not your average cartridge comparison!