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H4350 Vs. IMR4350

 
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  #1  
Old 12-03-2008, 08:10 PM
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H4350 Vs. IMR4350

What is the difference in these two powders. And also currious of the difference between H4831 and IMR4831
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Old 12-03-2008, 08:45 PM
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Re: H4350 Vs. IMR4350

IMR4350 has larger kernels and burns slightly faster than the H4350, or the stuff I have does anyway. Same deal with the 4831 I believe although I don't have both to compare directly.
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Old 12-03-2008, 09:25 PM
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Re: H4350 Vs. IMR4350

Z,
Physically, the various 4350's appear to be smaller in kernel diameter than the 4831 varieties. The IMR versions that I have are also longer kernels, however both the Hodgdon's that I have are Short Cut (SC).
According to Lapua's Burn Chart H4350 is faster than IMR 4350 and IMR4831 is the same burn rate as H4831SC and H4831.
According to HOdgdon's Burn Chart, IMR 4350 is faster (#91), H4350 is #92 and AA4350 is #93. I would assume they're close.
IMR4831 is faster (#98) than H4831 and the short cut vers (#101).
According to Reloaders Nest, AA4350 is #212, IMR4350 #213 and H4350 #217. IMR 4831 is #225 and H4831 is #232.

This data can be confusing sometimes. The various brands (IMR,H,AA) are really close, but not interchangeable. 4831 is definately slower than 4350. JohnnyK.
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Old 12-03-2008, 09:50 PM
KRP KRP is offline
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Re: H4350 Vs. IMR4350

4831 is definately slower than 4350. What I meant was the IMR to H comparison was the same, IMR has larger kernels and is slightly faster with both powders. Reading johnnyk's response made me realize I may have added to the confusion with the wording of my earlier post.
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Old 12-04-2008, 01:18 AM
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Re: H4350 Vs. IMR4350

I have also heard that H4350 is more temperature stable and IMR4350. Has this been this case with your experience?
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Old 12-04-2008, 02:18 AM
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Re: H4350 Vs. IMR4350

So far, this thread is best ignored.
.
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Old 12-04-2008, 09:47 AM
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Re: H4350 Vs. IMR4350

my experience with the H vs the IMR is that H is more consisitant.....i got a real high variation in velocities with the imr 4350 vs the h4350
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