6mm ARC Ballistics: Drop, Energy and Every Load
Every published 6mm ARC figure comes from a 24-inch barrel. Full trajectory tables, all eleven factory loads, and what a shorter barrel actually costs.
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223 vs 556: The Pressure Numbers Everyone Quotes Aren’t Measured the Same Way
The pressure figures used to compare .223 Remington and 5.56 NATO come from three standards measuring at three different points, and CIP rates .223 at the exact number cited as proof 5.56 is hotter. The real difference is 0.077 inches of chamber leade — plus what happened when a lab actually measured it.
