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H1000 vs H4831

 
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Old 08-04-2003, 11:28 PM
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H1000 vs H4831

Ok I'm confused, I'm about to work up a load for the 200gr Accubonds in my 300 Win Mag and don't know which powder to use.

I do like the Hodgdon powder for their temp stability as I'm doing a load workup in 80F weather but hunt in 10F weather.

I read that a number of knowledgeable folks here feel the H1000 is right for the bullet weight. And to back that up a load setup with H1000 would produce a lower peak pressure (read less throat erosion) than H4831 for the same mv.

But on the flip side H4831 is considered the standard 300 Win Mag powder, not only that but Nosler recommends it as the accuracy load for their 200gr Partition loads. Also the NC 1000yd club seems to use it more than the H1000. FYI When I called Nosler for load info on the 200gr Accubonds they said it is the same as the 200gr Partition.

So if anyone cares to shed some light on the subject I'd appreciate it.

AB [img]images/icons/confused.gif[/img]

[ 08-05-2003: Message edited by: AlbertaBound ]
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Old 08-05-2003, 04:39 AM
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Re: H1000 vs H4831

I am not sure that H1000 will contribute to less throat erosion. Presumably you will be burning MORE powder and that may offset the lower pressure theory. [img]images/icons/confused.gif[/img]
As far as choosing between the two powders, your rifle will most likely display a preference for one over the other. In my experience shooting magnum cartridges, the sloooowest powders are not usually the MOST accurate in a given cartridge. However, they will usually produce the highest velocity and may still be plenty accurate enough for hunting big game.
If you can, try both than choose.
VH
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Old 08-05-2003, 08:49 AM
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Re: H1000 vs H4831

AB, I'd think the more powder you burn, the more throat erosion your going to have, and since your using Nosler bullets, I'd go with their accuracy load, you could also call Hodgdon and see what powder gave them the most ballistic uniformity, 1-800-622-4366, I see H1000 only gave 50fps more than H4831 in my Hodgdon manual. Just my .02 cents, Jay
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Old 08-05-2003, 09:39 AM
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Re: H1000 vs H4831

i'd say try them both and see. one is probably going to work better than the other. i havent tried the 4831, but have shot the h1000 with the 200 accubonds from my 300rum, and the combo shot rather nicely.

-brian
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Old 08-05-2003, 09:52 AM
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Re: H1000 vs H4831

I picked up a good thread over at www.24hourcampfire.com, fellow named Ken Howell in the 'Ask the Gunwriters' forum had a long thread about how it is pressure and temperature over time that cause throat erosion. Since the time the bullet is in the barrel is somewhat constant between the different powders, the only thing left is peak pressure which is related to temperature, the higher the temp the more metal is eroded. As I understand the peak temp is above the melting point of the barrel metal, but it occurs so fast that there is little time to melt (erode) the barrel.

What was really interesting in the thread is that he goes on to logically talk about how his preferred pressure he loads to is around 50,000 psi, rather than the 60k psi at the SAAMI max.

So back to the powder issue .. I would imagine that loading for accuracy over velocity is the appropriate method, though are we talking about splitting hairs or is there a big difference.

AB
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Old 08-05-2003, 10:15 PM
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Re: H1000 vs H4831

jay,
the h4831 is faster burning i believe, and is why its listed for lighter rounds. although my working load isnt with h1000, it still shot 200gr accubonds and smk's well. if nothing else, i'd say its worth a try.

-brian
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Old 08-05-2003, 11:30 PM
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Re: H1000 vs H4831

Hey Brian, I see in my Hodgdon manual, they don't even list H4831 for the 200gr bullet for 300RUM, but is listed for lighter bullets. Jay
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