KO or Knock-Out Value
KO or Knock-Out Value - An attempt by Englishman, African hunter and gun writer John "Pondoro" Taylor to compare the relative effective power of various cartridges. Calculated by: (Bullet Weight in Grains x Bullet Velocity in feet per second x Bullet Diameter in inches) ÷ 7000.
From, Taylor, John, African Rifles & Cartridges, Samworth, 1948.
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