The artical posted had some Intresting information on the 1998 test.
How come both arrows only penitrad the hard steel plate 0.84 mm and 1.8mm as the 22 rimfire left a 3.3 mm dint.
Dam,,, and here I though my arrows had way more punch then my 22.
The 50 caliber BMG had the deepest dints in the hardened steel plate of 14mm and 29mm into the armor piercing plate.
Purhaps energy does play a roll after all.
Who would though that. Ha
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