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Old May 9, 2001, 09:35 PM   #1
Juan Hunt Greer
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Does anybody here know of a source of a good, comprhensive chart of powder burning rates which covers more than one ( preferably most) major manufacturers? I am tryingt to work up a bit of a project, and am severely hampered by a lack of data; HELP, Pleeeeeze!
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Old May 9, 2001, 09:50 PM   #2
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There is an excellent one in the MULWEX(Hogden in US)new Brochure, a real help with over 10 equivalents listed...with a disclaimer of course.They want you, of course, to only use Mulwex powders.... but it can be used for any of the others!

I reduce load equivalents by 10% as batches and rates can vary.

Old reloading books are also a gold-mine. [I collect them.]
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Old May 9, 2001, 10:52 PM   #3
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THere is one at http://www.reloadammo.com
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Old May 10, 2001, 09:28 AM   #4
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GREAT DISPARITY!!

There are a couple sites that list at least 100 powders according to their burn rates (fast to slow).

The data, when compared, is silly.

For instance one published chart lists AA#2 as the 4th fastest powder, while another lists it as 13th!

Someone should lump'em together in groups of 5 and say this group of 5 powders are equal when it comes to burn rate.

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Old May 10, 2001, 10:12 AM   #5
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I'd love to see a list of equivalent powders-such as H110 vs. WW296, WW-478 vs. Ball(C)2 etc. Their pressures and velocity seem to vary more by lot, than they do by brand. Someone's got to know which of these powders use the exact same grain size and deterrent coatings.
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Old May 10, 2001, 10:16 AM   #6
E. BeauBeaux
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http://www.realguns.com has a chart that lists most all powder burn rates. It fits on one page if you copy it.
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Old May 10, 2001, 09:26 PM   #7
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Realguns is down. Smith's is tabularonly. The Mulwex one is a cross-reference chart -I think far better.

Try Mulwex in OZ...they will send you a brochure, as I find them very helpful and friendly always. My 5c worth.
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Old May 12, 2001, 01:42 AM   #8
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I would like to know where Long Shot fits in.
The 460 Rowland loads in my 45s are about the same as with AA#5.
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Old May 12, 2001, 08:30 PM   #9
JohnK
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Burn rate charts

I have one on my web site at http://www.handloads.com/misc/burnrate.htm
and Beartooth Bullets has one in PDF format at http://www.beartoothbullets.com/pdf/powder_burn.pdf

John
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Old May 13, 2001, 02:54 PM   #10
Juan Hunt Greer
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Thanks lots, all You Guys ( and, hopefully Gals)I now have two of them and can begin " fiddlin' around."
crankshaft, the paranoid
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Old May 13, 2001, 05:40 PM   #11
Big Bunny
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Still feel Mulwex one is safer......
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Old May 13, 2001, 07:12 PM   #12
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Powder rates..

If you need another source try the Exploding Groundhogs site at http://www.egpworld.com. Look under the "powders" and there's a burn rate chart. I read somewhere that different lots of powder can move the burn rate 4-5 places on the chart so it only gives a general idea. This could be the reason for the above post where powders fell into different orders on different charts.
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Old May 14, 2001, 06:41 PM   #13
Walt Welch
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An important thing to remember is that the data used to compile burn rates are obtained by burning the powder in an enclosed, fixed capacity space (much like a 'bomb' calorimeter).

This makes it somewhat difficult to apply these data to actual observed burning rates in metallic cartridges.

Walt
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Old May 15, 2001, 07:35 AM   #14
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Please please please be careful Mr. Experimenter.

Burn rates IN THE CARTRIDGE ITSELF vary wildly, so extrapolation needs to be prefaced with "SAFETY FIRST".
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Old May 16, 2001, 01:39 AM   #15
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Read what Weshoot2 said again.
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Old May 20, 2001, 11:16 PM   #16
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One problem is, that burn rate itself is not comprehensive.

Not that I know everything, but I can tell there are lots of variables.

Power Pistol in 9mm and H110 in 44 mag do not always behave per their place in the burn rate chart.

They make too much noise and recoil for the pressure signs.
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