Need advice on IMR 4831 powder


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donttellthewife
April 12, 2007, 01:04 AM
I found another deal on Craigslist,
http://portland.craigslist.org/clk/spo/310089703.html
but about the only thing I would load useing this powder would be 8mm ( as per the IMR website loading data ). 8lbs for $120.00, OK price with the way prices are nowdays, but I sure could use some advice on this powder, if you have reloaded with it before or know anything about this powder This deal will go away fast, so I need help to decide one way or another before it does.

Thanks, Ron

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CZ57
April 12, 2007, 01:35 AM
dttw: I don't load the 8 X 57mm? But I do like IMR 4831. It's natural that the IMR site would show load data, but my manuals don't start recommending it until you reach 200 gr. Bullets. It is a great powder for a number of cartridges, .270 and .280 are just two of many examples. With rifle cartridges rated for 60,000 PSI or more, it can be used in .243 up to some of the heavy hitters like the 8mm Mag and .338 Win Mag.;)

ReloaderFred
April 12, 2007, 03:32 AM
IMR 4831 is an excellent powder for certain applications. For years it was the powder of choice for the large magnum rounds. It's a slow powder, and up until about 20 years ago, was the slowest powder offered for loading rifle ammunition.

It's not suited to semi-auto rifles, though. It's especially not suited to the M1 Garand, as it will result in a bent operating rod, due to excessive port pressure. I believe IMR 4831 was developed for 20mm cannon use in World War II. It was the powder that put Hodgdon in business when he was buying it in 100 pound drums as surplus after the war and repackaging it. I still have one of the one pound paper bags he first sold it in from the early 1960's.

This powder works best with the heavier bullets in most calibers, but will work with bullets in the mid-weights, though that's not where it performs best. If you're going to be shooting it in bolt action rifles, then it will work fine, but expect the case to be full with the suggested charges.

Hope this helps.

Fred

donttellthewife
April 12, 2007, 05:19 AM
Thanks guys, I think I'll pass on this deal and stick to what has worked for me in the past. Your fast reponses are much apprieciated. If you know anyone in the Portland area and could use this powder be sure and let them know. If Craigslist pulls this add I have a copy of the guys contact info, and they are likley to pull it
Thanks, Ron

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