2009-05-16, 01:52 PM
Tempus Wrote:Assuming your shotgun is the same size as a Winchester 1887:
So it's hitting with a force of about 1N.
What might be more useful is the stress:
![[Image: eq.latex?\begin%7Balign%7D\sigma&=\frac%7BF%7D%7BA...end%7Balign%7D]](http://www.codecogs.com/eq.latex?\begin%7Balign%7D\sigma&=\frac%7BF%7D%7BA%7D\\&=\frac%7B4\times%200.987552%7D%7B0.06%5E2\pi%7D\\&=349.2750719\%20Pa\end%7Balign%7D)
The stress is only rough because the area of the BB that hits is alot smaller than the area I used here (just taking it's diameter). I'm not sure how much stress hurts, but I've seen somewhere that 20 psi (= 6894.757 Pa) bruises the skin.
But I could be totally wrong.
It's only ~1/20 the strength to bruise skin? It sounds very reassuring then since it would imply it can't bruise the skin when if shot at point blank range. However, how would that explain it being able to shatter the #5 plastic container through both sides? To me, it looks like it's way more than 1 newton of force, or I could be wrong and totally underestimated the plastic container that I used. :f6: