Physics and Firearms…

Casey R. Vandor
Physics 211, Fall 2000
David Newman

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So you are into reloading and you wonder how well that little package with 77 grains of IMR 4350 powder behind a 300 grain round nose, full metal jacket bullet will do.  Well, you can do two things, a little bit of physics calculations, or go out and touch it off, hoping that it doesn’t explode in the barrel!  I would choose to do a little physics myself…  By using some basic physics equations, you can figure out just about any part of the rifles ballistics data.  For instance, if you know a few variables, you can predict range with physics, or if you like you can figure things like drag on the bullet, pressure and expansion values inside the gun, on the bullet and much more, all from physics.  For this web page, I will stick with simple stuff like energies and range.

Click on the bullets to continue! 
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