45/70 BP trajectory table


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Uncle Alvah
September 2, 2006, 03:45 PM
I'm looking for a table that would show ballistics and trajectory for Black Powder cartridge loads.

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Geno
September 2, 2006, 06:31 PM
Does a 45-70 have a trajectory?! Kidding. Seriously, the 45-70 is my 2nd most favorite cartridge. I drops a boar like nobody's business. Check at the major bullet and powder manufacturers. They should have one.

Here you go:

http://www.fishandhunttexas.com/45-70_government.htm

I know that the powder is probably smokeless (not black powder) but the velocity is identical either way, and ergo, trajectory is the same as well.

God bless and be safe,

Doc2005

Chuck Dye
September 2, 2006, 06:53 PM
I enjoy the Norma Ballistics (http://www.norma.cc/htm_files/javapagee.htm) page. You can use the "Define your own bullet" option and play, at least out to 600 yards. A search engine will get you into other ballistics programs that extend the range. Most cast bullets for the .45-70 seem to have ballistic coefficients between 0.27 and 0.37, clustering heavily around .30. If your B.C. and muzzle velocity are the actual values for your load and rifle , as opposed to the published values which may not reflect reality, you should find the software predictions pretty accurate.

Geno
September 2, 2006, 07:29 PM
Sa weet!

Edit to add:

SA WEET!!!! This is fun!!! Thanks Huck!!!

Doc2005

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