7.62x40WT, WT for Wilson Tactical


This cartridge was designed by Bill Wilson of Wilson Combat and marketed in or around 2011. The 7.62x40WT, WT for Wilson Tactical, is a .223 Remington or 5.56 NATO case neck out to .308" or 30 caliber and shortened to 40mm so the cartridge will fit in an AR-15 (.223 Remington or 5.56 NATO) magazine. It is about 5mm longer then the 300 Blackout and 300 Whisper cartridges.
In the size comparison photo left to right 5.56 NATO, 7.62x40mm WT, 300 Blackout

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