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Old 12-06-2018, 07:51 PM
Salavee Salavee is offline
 
Join Date: Sep 2008
Location: Parkland County, AB
Posts: 4,257
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Quote:
Originally Posted by Stinky Coyote View Post
Maybe? You call it momentum I call it sd. End of day it’s still frontal area x mass. Bit tricky to calculate on the Broadhead alone but the heavier arrow from same bow goes slower so it stops slower and the sd is higher so that helps it go deeper too, no expansion there. I believe Andrew pointed out a quadratic relationship? I love that btw, sounds about right for that increase in velocity to penetration and also recoil energy vs impact energy...inefficient and largely useless figures but that’s a good term to help explain it.😉
Momentum is a motion, so how do you associate with that with a bullets SD ?
SD refers to Total Bullet weight and diameter, so it has no momentum. Gad Man ! you're a real piece of work

Tell me how you measure the SD of an arrow without a form factor, or do you have a secret ?

Gad Man ! you're a real piece of work.
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