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Old 01-06-2010, 09:54 PM
USSR USSR is offline
Join Date: Nov 2009
Location: Burdett, NY
Posts: 1,994

Originally Posted by ma96782 View Post
I was interested too........

Taken from: http://www.imrpowder.com/history.html

Anyway......since Oct 2003 IMR was bought out by Hodgdon. So, perhaps it's only a matter of time before IMR and H powders are in fact the exact same powder? Maybe?

Aloha, Mark
Actually, IMR wasn't bought by Hodgdon, Hodgdon simply bought the rights to sell/distribute it. IMR4831 is made by a powder company in Canada which I believe still owns the IMR brand name, and H4831 is made by a powder company in Australia which ships it's powder over here and Hodgdon packages it with the Hodgdon brand name. Two different formulations by two different powder factories. As long as both sell well, Hodgdon will sell them both. If one doesn't sell as well as the other, then they will drop the poor selling one, just like they dropped the H4227 powder from Australia, and the 4831 powder will be the formulation as used by whatever powder factory provides it.

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Old 01-07-2010, 12:56 AM
ma96782 ma96782 is offline
Join Date: Oct 2009
Location: Vancouver, WA
Posts: 209


Hodgdon Powder Company purchased IMR® Powder Company in October 2003. Hodgdon Powder Company offices are located at 6231 Robinson in Overland Park, Kansas. IMR powders continue to be manufactured to the same exacting performance criteria and quality assurance standards that shooters have come to expect.
That quote was taken from the IMR web site.

Aloha, Mark

PS.........It was Winchester Ammunition that had a "lic. agreement" with Hodgdon.

In March 2006, Hodgdon® Powder Company and Winchester Ammunition announced that Winchester branded reloading powders would be licensed to Hodgdon. Winchester Smokeless Propellants, the choice of loading professionals, are available to the handloader to duplicate the factory performance of loads from handgun to rifle and shotgun.
That was taken from the Winchester web site.

But, no doubt that the actual manufacturing site for the various Hodgdon powders may vary (if not change or has changed, over time). Remember when Hodgdon had (some of) their powders imported from Scotland?


Hodgdon Powder Company offices are located at 6231 Robinson in Overland Park, Kansas (even though the mailing address is Shawnee Mission, the destination of the central post office). The Powder magazine, packaging and manufacturing facilities are maintained about 140 miles southwest of the main office, in Herington, Kansas. Additional magazine space, located on a closed military base, is also leased from the City of Topeka, Kansas.
That was taken off of Hodgdon's web site.

So anyway, I don't really know if all, some, or if any...........of Hodgdon's powders are actually manufactured at Herington, KS. Note that: HP38 is suppose to be the same powder as W231 (only in a different package) and it's made by Olin. I figure, the company (Hodgdon) just probably goes where the deals are to be had (at the right price). If you know what I mean?

If the H4831 is currently made in Australia........good. Hodgdon probably got it at a good price.

And, things may change.

BTW...........the web sites of Hodgdon, Winchester and IMR have the same look to it.


Last edited by ma96782; 01-07-2010 at 02:02 AM.
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Old 01-07-2010, 01:29 AM
gpw9552 gpw9552 is offline
Join Date: Oct 2009
Location: Mesa, AZ
Posts: 872

You can take this for what ever you think it's worth.

COMPLETE GUIDE TO HANDLOADING, Philip B. Sharpe, copyright 1937 and 1941.

IMR powders.


IMR #13
IMR #15
IMR #15 1/2
IMR #16
IMR #17
IMR #17 1/2
IMR #18
IMR #1147
IMR #1185
IMR #1204
IMR #3031
IMR #4064
IMR #4198
IMR #4320


IMR #3031
IMR #4064
IMR #4198
IMR #4227
IMR #4320
IMR #4350
IMR #4759

These were the powders available to the general public.
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