Camel

October 24, 2003, 01:19 PM

Do any of you folks know of a website or program where I can imput weight and velocity and get muzzle energy? Is that even the correct term? Im kind of new to the whole ballistics thing.

Camel

October 24, 2003, 01:19 PM

Do any of you folks know of a website or program where I can imput weight and velocity and get muzzle energy? Is that even the correct term? Im kind of new to the whole ballistics thing.

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Vern Humphrey

October 24, 2003, 01:30 PM

The correct term is "kenetic energy." Kenetic energy at the muzzle might be termed "muzzle energy," however.

The formula (developed by Issac Newton) is simple:

Kenetic energy = 1/2 Mass X velocity squared.

To convert weight to mass, you must divide by the gravitational constant, 32.2 ft/sec/sec.

The whole formula is:

Kenetic energy = 1/2 X weight X velocity X velocity DIVIDED by 7000 (grains per pound) X 32.2 ft/sec/sec.

You can easily plug this into spreadsheet -- like Microsoft Excell

The formula (developed by Issac Newton) is simple:

Kenetic energy = 1/2 Mass X velocity squared.

To convert weight to mass, you must divide by the gravitational constant, 32.2 ft/sec/sec.

The whole formula is:

Kenetic energy = 1/2 X weight X velocity X velocity DIVIDED by 7000 (grains per pound) X 32.2 ft/sec/sec.

You can easily plug this into spreadsheet -- like Microsoft Excell

Camel

October 24, 2003, 02:03 PM

I guess if I had studied a little harder that would make a lot more sense.

I found an equation that is simplified for people like me.

E=MV2/450400, where M is bullet mass in grains, V is the bullet velocity in ft/sec, and 450400 is a constant specific to English units of measurement.

14000 x 212.7^2/450400 = 1406.26 ft/lbs.

I found that here Muzzle Energy Calculator (http://members.aol.com/mudsmeller/reloading_data/muzzle_energy.html) for anyone thats interested.

I found an equation that is simplified for people like me.

E=MV2/450400, where M is bullet mass in grains, V is the bullet velocity in ft/sec, and 450400 is a constant specific to English units of measurement.

14000 x 212.7^2/450400 = 1406.26 ft/lbs.

I found that here Muzzle Energy Calculator (http://members.aol.com/mudsmeller/reloading_data/muzzle_energy.html) for anyone thats interested.

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