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IMR Vs Hogdon 4350

 
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  #8  
Old 07-27-2010, 06:19 PM
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Re: IMR Vs Hogdon 4350

I'm not bashing Hodgdon. They are as good as any other powder out there.
But they may not be the best any particular gun. Don't matter if they call it 'Extreme' or 'Super-duper' or whatever..

This thread is about 4350, and there is yet a basis that suggests H4350 is better, or worse, than IMR4350. Right?
The Barnes testing linked did not compare the two. Right?
Hodgdon has provided no basis for their claim whatsoever. Right?

Well, here is some testing that does atleast compare the two in question:
http://www.shootingsoftware.com/ftp/...%20Factors.pdf

As far as opinion? Well ya never know. Mine, and anyone else's, might just trump hype!
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  #9  
Old 07-28-2010, 11:37 AM
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Re: IMR Vs Hogdon 4350

I use a lot of H-4350.
I haven't tested 4350 in extreme temps, but I have with Retumbo (another one of the extreme line) and I had no change in my 7mm Dakota when chronoing.
Temp ranges were from 20's-to upper 70's.
Only did this with this gun, but it was pleasing to see the results
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  #10  
Old 07-28-2010, 05:52 PM
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Re: IMR Vs Hogdon 4350

Ernie,
Ok I'll bite, do think that 20-mid 70's is an 'Extreme spread in temp? I think that more like 20 to 90+ is the temp range you really need to be doing testing in.
The BR guy's had a good time here last Sat for 200 yard IBRS sanctioned shoot... 87deg by 9am and went to 96 deg plus 70+ humitidy now that's 'Extreme' I would think, my 2c.
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  #11  
Old 07-28-2010, 06:34 PM
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Re: IMR Vs Hogdon 4350

Kev,
It should have had more temp range-for sure to be a true test.
I can't even tell you all the reasons at this time why I re-chronoed the load, other than, I did.
I remember being extremely pleased at the results though.
Used an Ohler Chronograph.
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  #12  
Old 07-28-2010, 06:53 PM
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Re: IMR Vs Hogdon 4350

Quote:
Originally Posted by Ernie View Post
I use a lot of H-4350.
I haven't tested 4350 in extreme temps, but I have with Retumbo (another one of the extreme line) and I had no change in my 7mm Dakota when chronoing.
Temp ranges were from 20's-to upper 70's.
Only did this with this gun, but it was pleasing to see the results
I've taken Retumbo from the -31 degrees to 92 degrees the other day and had no changes that I could see on the chrony or pressure signs, that is why I've gone with the Hodgen Extreem powder over IMR which I've seen as little as 30 degrees mess things up with.
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  #13  
Old 07-28-2010, 07:20 PM
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Re: IMR Vs Hogdon 4350

How does your Retumbo result relate to the subject?
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  #14  
Old 07-28-2010, 08:02 PM
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Re: IMR Vs Hogdon 4350

Quote:
Originally Posted by Mikecr View Post
How does your Retumbo result relate to the subject?
H4350 and Retumbo are, as you know, in the same line of powder formulated to be extremely temp stable. So you should be able to have some expectations from the fact that both are formulated to handle temp swings the same. Temp swings are extremely important for long range hunting, I have used H4350 over IMR4350 in my WSM because of the possibilty of temp stability problems over groups for hunting and predicting first round hits on game animals. Both shot well and held to hunting standards to my effective range but I can have a 45-50 degree temp swing in one hunting day so having a powder change POI on me mid day is unacceptable even though I can take it into account with my ballistics program, I choose not to. In the end I found Retumbo out performed H4350 in velocity so that is my powder of choice for my main hunting rifle.

I admit that I did not take the time to check exactly how much change I had due to temp with IMR powders or IMR4350 but I have shot enough of the Extreme powders to know that I have not experience any of the temp problem with the line. Conclusive, NO.
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