SECTIONAL DENSITY, EXPANSION AND PENETRATION OF ALL COPPER BULLETS
By Badlands Precision |
The definition of sectional density is mass divided by cross sectional area (M/A). As it applies to bullets it is the weight of the bullet in grains divided by 7000 times the diameter of the bullet (Cal) squared M (grains)/7000 X (Cal)2 Sectional density alone in, general terms, predicts penetrating ability of the bullet but…
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