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Old 12-05-2017, 10:36 PM   #7
hal
 
Join Date: Aug 2004
Location: Buffalo, New York
Default Re: GUN Need to stat out a Weatherby .270 Winchester

Quote:
Originally Posted by Colarmel View Post
FPS isn't how gun damage works. It's FPS and projectile weight. FPS is only half the equation.
As pointed out in my post: muzzle velocity plus bullet diameter plus bullet weight plus aspect ratio are the required variables. The aspect ratio is used (iirc), to help determine 1/2 damage range. The other three are necessary for damage values as well as calculating 1/2 damage range.

I could have set it up for strict units such as meters per second, grans, and diameter in mm, but the reference books I’m using generally list velocity in feet per second, weight in grains, etc. It is easier to convert from caliber to mm, so I went with that.

I suppose I could add a section that lets one use any given statistics in any given measurenent system. Hmmm, food for thought.
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