Penetration of Arrows
                                    


A hunting arrow with a properly sharpened tip or head weighing in the neighborhood of
0.07 to 0.10lbs that has a kinetic energy of 50 to 60 ft lb, has very little shocking power but amazing penetration.
Since for a given resisting force, depth of penetration varies directly as the kinetic energy of the arrow it is better
to use a heavy rather than a lighter arrow.

 
slide 4. pic 6
http://archeryreport.com/2011/02/bow-efficiency-care/


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