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H4350 Temp. Data

 
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  #15  
Old 08-07-2011, 03:43 PM
MHO MHO is offline
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Re: H4350 Temp. Data

Well guys I appreciate all your info. After this weekend I came to realize that Hodgdon is full of it with the claims on H4350. Put four rounds in the freezer. Double wrapped in freezer bags. Freezer was set to 32 degrees. Left for 6 hours. Took them out after we were done shooting. Had chrono set up etc. They were shot within a minute of leaving the freezer. Had an average of 226 fps loss.
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  #16  
Old 08-07-2011, 04:32 PM
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Re: H4350 Temp. Data

But the PRIMERS were also frozen. So which caused a greater part of the discrepancy?

I never adopted a reason to believe Hodgdon's claims. Afterall, they have yet to provide an actual basis for any of them. But I do like Hodgdon powders.
I really believe you'd have to go warmer(than ambient) -with the powder only, and that this would have to be loaded locally. Otherwise you affect more than just powder.
If you went cooler with locally loaded powder, dewpoint condensation would have to be eliminated.
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  #17  
Old 08-08-2011, 07:24 PM
MHO MHO is offline
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Re: H4350 Temp. Data

Mikecr, But if your loading for a hunting situation, wouldnt the primers be frozen? Everything else is at that temperature. Powder, brass e.t.c. I know how we tested is not an exact science but its the only we way we knew and for it to have that much fps loss is awful. We are hunting in December / Southeast Kansas which will be a hell of a lot colder than 32. So do you know of a better way to test it? Thanks
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  #18  
Old 08-08-2011, 07:39 PM
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Re: H4350 Temp. Data

Before you imply evidence that Hodgdon's claims are false, you first have to isolate their powder in your test. Otherwise anyone less inclined to believe you would just point to the frozen primer as the cause.
I told you TWICE, in this thread, how to test it
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  #19  
Old 08-08-2011, 08:26 PM
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Re: H4350 Temp. Data

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Last edited by Boss Hoss; 11-09-2011 at 06:51 AM.
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  #20  
Old 08-09-2011, 10:23 AM
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Re: H4350 Temp. Data

Like I said, I'm not a believer either way.
And part of the reason is because 'meticulously prepared ammunition' at different temps is NOT a specific test of powder alone.

I know velocity rises with temps. Everybody knows this.
But I don't generalize it to mean whatever I want it to mean.
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  #21  
Old 08-10-2011, 09:01 PM
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Re: H4350 Temp. Data

H4350 is very temperature stable in my 338-06 Ackley. 15 fps difference from 90's to the 30's. Altitude 5600'.
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