I just picked up 20# of H 202 today. Does any one have loading info on this powder? I would like to try it in 30-06 or 45-70. I tryed looking it up on a chart for burn rates, but it wasn't listed. Does any one know if this would be 50 cal powder?
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I just picked up 20# of H 202 today. Does any one have loading info on this powder? I would like to try it in 30-06 or 45-70. I tryed looking it up on a chart for burn rates, but it wasn't listed. Does any one know if this would be 50 cal powder?
I called Hodgdon and they said they never made a H 202 . The old guy I bought it from at the gun show said he used it for large cases because it had a slower burn rate. Any one ever work up a load for an unknown powder? I would hate to waist 20#, it's a small ball powder.
He had a lot of old powder {I bought most of it} including the square cans of Unique and 2400 . I also got a partial can of dupont 4227 military rifle powder, nice red white and blue can. All his stuff was old but in good shape.
Have you got a date on purchase and/or manufacture? Is there a label that you can photograph or reproduce? That would help. I'll look in some old manuals and catalogs and see if I can find anything.
Did Herters ever market a 202 powder?
No label, box is marked 20# H-202 Ohio cast or Ohio cust {it looks more like u } in marker. The brown cardboard container is stamped propellant explosives solid, class B . The side is stamped smokless gunpowder and warning. No adress or labels
Do a Google search and make your own determination as all I found was hydrogen peroxide was mixed with smokeless powder to produce more energy. About 1939-1947
When working with an unknown powder, it would be wise to first assume it is the fastest thing it could possibly be and use the strongest action you own. If you are absolutely certain it isn't a pistol powder, start with something like AA1680 data and work down the list by burn rate until you find a match for your unknown by chronographing minimum loads. When the test load matches the advertised velocity of the published load, you have found approximately the burn rate of your powder. Remember that other factors (Case capacity and Case Shape) also play a role in burn rate so do not do your test in one cartridge and assume you can use published maximum charges in another.
Reloading Data Project - (in retirement)
http://sourceforge.net/projects/reloadersrfrnce/
Know what milsup #s work for rifle powder???
Yep, but first tell us for which cases and projectiles. ... felix
felix
You bought 20# of powder not knowing what it is??
Shiloh
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I did google searches, didn't find anything. {I guss that should tell me something}
I'd do what they advised on 7383. Fill five cases full, and take the average. Start with cast at 65% and go slowly; like you're enjoying a good Ashton or Fuentes Opus Opus X.
Rich
For Shiloh, I thought I could look it up and work out a load from my books. Besides 20# for 50.00 = 2.50 a pound, for that price I would gamble again. I will work a load up - thanks for all your help!
It could be as fast as WW231. I would start at 10-12 grains in a 30-06. lead bullets only. Bring a steel bore rod, hammer and chronograph.
From: Here's How to Pick Powders, Robert Hutton, Handloader's Digest, 4th Ed. (1968)
These powders were grouped together in burning order in a table in the article:
IMR 5010 "slowest burning DuPont, was used as a machine gun powder during WWII, would be highly useful in the largest wildcat cartridges."
H5010 "Discontinued by Hodgdon, it is available to the major reloading companies from DuPont."
X283 "an experimental powder during WWII, and Hodgdon reports only 3000 lbs. left."
H202 "also experimental, is no longer available"
From: Hodgdon Smokeless Powder ad, Handloader's Digest, 2nd, Ed. (1964)
"5010 (M.G.) - the slowest powder adaptable to sporting arms. Only in large cases with extremely heavy bullets can pressure be brought up to give good velocity. 1 lb. can, $1.50."
From: Handbook for Shooters and Reloaders, P.O. Ackley (1962)
General Information - Surplus Powders, by B.F. Hodgdon
Reduce first test load by 5% from highest shown.
Loading Data for 5010 - 50 MG
Caliber - Bullet Weight - Powder Charge - Velocity
6mm - 105 gr. - 80.0 gr. - 3719 fps
6mm Improved - 90 - 86.5 - 3542
6mm Improved - 105 - 86.0 - 3552
.270 WCF - 150 - 66.0 - 2772
.270 WCF - 170 - 66.0 - 2670
7mm/06 - 175 - 62.0 - 2195
.30-06 - 150 - 60.0 - 2251
.30-06 - 175 lead - 56.0 - 1992 (Lyman 311467; duplicate load in Lyman manual)
.30-06 - 180 - 60.0 - 2171
.30-06 - 200 lead - 56.0 - 1910 (Lyman 311284; duplicate load in Lyman manual)
.30-06 - 220 - 60.0 - 2137
.300 Weatherby - 220 - 94.0 - 2603
From: Speer #6 (1964), H5010 data
.300 Weatherby - Rem. cases, Rem. 9 ½ primer
180-gr. Speer 3085-180-6-SP - 92.0 to 98.0 grs - 2847 to 3059 fps
200-gr. Speer 3085-200-6-SP - 89.0 to 95.0 - 2797 to 3010
I would be a little leery of using H202 in reduced cast bullet loads due to its extremely slow burning rate. Some of the more "mature" members may be able to give you some tips on this. Hope you've got some really big guns.
1z-bar; the only reference I have found so far is in an old article by Robert Hutton on the 30/378 Weatherby" The Powley Computer prescribes IMR 5010 powder and we found that 108 grains of it gave 3,100 fps at only 47,000 psi. And 105 grains of H870 gave 3,200 fps at 50,000 psi, with better accuracy. Still to be tried is a ball powder of similar burning rate, H202, no longer available, but with enough on the way for trial and a Wimbledon match."
Looks like you got some SLOW powder there
Charter Member #148
Thanks guy's, at least I know it's Hodgdon powder now. I couldn't even find who made it.
I have a 45-70 and a .458 ruger tropical {it's for sale} and a 7.5 swiss. I also have a .41 swiss vereli I'm going to convert to center fire {it's probly to slow for that}.
Thanks BerdanIII for the chart!!
...............There were a couple of slow ball powders available and very cheap for many years. One was WC860 which was a 50 bmg powder and the other was WC872 which was a 20 mm cannon powder. Bartlett shows WC860 available @ $72/8lbs. To think I was buying it at $28/8lbs, and WC872 was cheaper, ha! No one shows WC872 any longer.
Go to Castpics at: http://www.castpics.net/
Then on the menu on the left go to "Cast Members Load Data". This will open a page with a disclaimer. Read it and click on, "I accept the agreement take me to the Load Data."
For the data on a slow powder you'll be looking at the rifle cartridges. 99% of this data was done with surplus military powder. Almost none of these powders are around any longer but the WC860 & WC872 & WC5020 can give you some ideas.
...............Buckshot
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how the heck could they ever of gotten 80 grains of powder into a 6mm case!!!Originally Posted by BerdanIII
Lloyd:
The data is from Ackley's book, so it's probably some huge case blown out even bigger. I took I quick look in the section that shows the cartridges and didn't see anything called "6mm", but there were all sorts of 6mm wildcats. I can look again to see if one jumps out at me.
Given the date and the numbers, it would suggest it was a 6mm-300 H&H.
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