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Loading down the .300RUM?

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Unread 01-15-2009, 04:12 PM
Bronze Member
Join Date: Dec 2007
Location: Georgia
Posts: 50
Re: Loading down the .300RUM?

The Hodgdon site youth loads suggest loading 60% of max with H4895 for youth loads (saying"its the slowest burning powder that ignites uniformly at reduced charges") but doesn't give load data for this caliber with this powder. Does anyone have a max charge of H4895 for the .300rum? Thanks BHJ

1/16/09 Johan over at Ramshot came through with several reduced loads for me using 5744 for several overbore cartridges looks like time to experiment.

Thanks guys BHJ

Last edited by big honkin jeep; 01-16-2009 at 05:23 PM.
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Unread 01-16-2009, 10:40 PM
Silver Member
Join Date: Dec 2007
Location: SW Texas
Posts: 330
Re: Loading down the .300RUM?

Lee 2nd edition has good general info on reduced loads and lists some for 300 RUM.
With 180 gn bullet 69.2 gn ACCUR 2700 gives 2840 fps.
72.8 gn IMR4350 gives 2844 fps.
77.8 gn IMR 4831 gives 2827 fps.
64.0 gn A XMR-4064 gives 2741 fps
55.4 gn ACC XMP5744 gives 2726 fps
38.0 gn ACC XMP5744 gives 2111 fps at 28300 psi, that's pretty reduced!!

I have no info on accuracy at the very low load densities.
But for a plinker maybe that isn't too important.
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Unread 01-17-2009, 08:49 AM
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Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,423
Re: Loading down the .300RUM?

Just a thought but .................. if you shot a very light TSX bullet you would reduce both recoil and bloodshot meat. You could use the minimum suggested loads in the Barnes book without fear of a detonation of some sort.

Just another approach to the problem that you may want to consider.
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Unread 01-18-2009, 03:51 PM
Bronze Member
Join Date: Dec 2007
Location: Georgia
Posts: 50
Re: Loading down the .300RUM?

Thanks for the help guys. I was re reading the section in the first lee manual Modern reloading by Richard Lee and there are some pretty good guidelines for finding suitable powders and calculating reduced loads. Even when I'm plinking accuracy is definitely a consideration. I have a pretty fair variety of powder available so with some experimentation hopefully I can come up with some acceptable results. Any additional info welcome Thanks BHJ
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Unread 02-20-2009, 08:56 AM
Silver Member
Join Date: Dec 2008
Location: Canberra, Australia
Posts: 119
Re: Loading down the .300RUM?

Could you not use the minimum load for a heavy bullet (300gr) with a light bullet (110gr) as the load density should be similar.
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