22-06-2011, 15:11
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חבר מתאריך: 11.09.06
הודעות: 10,200
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מתוך הבלוג ammo Oracle:
ציטוט:
Testing by combat surgeon Col. Martin L. Fackler, MD (USA Medical Corps, retired), determined that M193 and M855 bullets need to strike flesh at 2,700 feet per second in order to reliably fragment. Between 2,500 fps and 2,700 fps, the bullet may or may not fragment and below 2,500 fps, no significant fragmentation is likely to occur. If there isn't enough velocity to cause fragmentation, the result is a deep, 22 caliber hole, except an area where the yawing occurred, where the diameter of the hole grows briefly to the length of the bullet.
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ציטוט:
M193 rounds after close encounters with ballistic gelatin at various velocities. (Fackler)
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2700 f/s הם 820 מ'\ש', שכבר קרובים למהירות הלוע של M4.
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