![]() ![]() What was overlooked was that each man was a highly skilled rifle shot. 270 Winchester rifle cartridge, and Elmer Keith, who was a vociferous advocate of large calibers and heavy, slow-moving bullets. In the hunting world, a debate lasted for decades between master hunters Jack O’Connor, who did much to popularize the light, fast. 45 is about 60 percent more than made by the 9mm.” 9mm vs. 355, take half that, the radius, square that, and what you’ll find is that the volume, or the area, of damaged tissue made by the. What does is the area of a circle, or pi-r-squared. But how much bigger, by diameter, really doesn’t give you the measure of how much tissue it disrupts. Fackler said, “The size of the hole the bullet makes, the. Martin Fackler was a huge influence in the field of wound ballistics, and much of the FBI protocols in this regard follow his principles. 357 Mag round were able to score consistently above 90 percent.” Among the initial rounds tested, only the 10mm. 38 Special also achieved a 67.5 percent success rate. 38 Special fared just as poorly, and the standard FBI-issue. ‘We expected that there would be a gap,’ said Patrick, ‘but we didn’t expect it to be so large.’ In the first series of tests, the best a 9mm could do was 67.5 percent. He wrote, “As the testing progressed, another factor became obvious. From the six-shooter days of the Western frontier onward, conventional wisdom has held that at typical handgun velocities, bigger bullets are better.Īround 1990, writer Charles Petty was given unprecedented access to the FBI’s wound ballistics studies that had led to the agency’s adoption of the 10mm cartridge.
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