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Old March 7, 2012, 08:30 AM   #14
mikthestick
Senior Member
 
Join Date: January 29, 2012
Location: Devon England
Posts: 175
For Darl

I have read your post and agree with everything you said.
You like Taylors formula, well here is a little known formula you might like better. Game weight = impact energy x sectional density x bullet area x 25.
Let's look at an M16, at 100yds its energy is about 1010ft/lbs, SD = 0.161, area = 0.039. This gives 158lbs. IF a quartering shot is made use 18 for a multiplier. IF the game is dangerous the multiplier is 12.5. This means that for game of the hoofed variety the target should weigh between 114lbs and 158lbs. IF a wolf saw you first and charged lets hope it doesn't weigh more than 79lbs
If you use this formula on a Reminton double derringer you get about 25 which is unlikely to stop a determined attacker unless you hit that 15%.
ps. Most of these formulas take for granted that you have the right bullet for the job in hand.

Last edited by mikthestick; March 7, 2012 at 08:39 AM.
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