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Powder Burn Rate Chart... NEW

 
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  #8  
Old 06-09-2011, 01:02 PM
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Re: Powder Burn Rate Chart... NEW

Given Lou's comments...

Would it be safe to compare Superformance which is adjacent to H4831sc to H4831sc load data and lacking data for a given cartridge, start a conservative load workup using the minimal charge weight for H4831sc?

Or, are the charge weight and burn rate completely independent?

I suspect they are completely independent as I see load data for a random cartridge that shows 49.0g as a starter load for H4831 and 43.2g for N160 both of which are adjacent in the table. As such, the starter load for H4831sc is well above the max load for N160.

I like the list for what it is. But, it's not load data.

-- richard
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  #9  
Old 06-09-2011, 01:21 PM
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Re: Powder Burn Rate Chart... NEW

Quote:
Originally Posted by rscott5028 View Post
Given Lou's comments...

Would it be safe to compare Superformance which is adjacent to H4831sc to H4831sc load data and lacking data for a given cartridge, start a conservative load workup using the minimal charge weight for H4831sc?

Or, are the charge weight and burn rate completely independent?

I suspect they are completely independent as I see load data for a random cartridge that shows 49.0g as a starter load for H4831 and 43.2g for N160 both of which are adjacent in the table. As such, the starter load for H4831sc is well above the max load for N160.

I like the list for what it is. But, it's not load data.

-- richard
Charge rate and burn rate are completely independant issues. Burn rate charts are useful tools for comparing powders when trying to decide whether one will be useful in a given application, but as has been stated, you still need some reference source to establish a load. That's where lab developed, empirically tested data from the manufacturers comes in. The analogy here between H4831 and our own N160 is a good one. Very similar in burning rate, but substantially different in many other regards.
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