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Old September 18th, 2018, 08:14 AM #11
Magnumite Magnumite is offline
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This subject was a little bit of bruha in the gun magazines about 15-20 years ago. It was interesting reading much like this thread. I garnered much of what has been noted here. Basically it went something like this:

Cannister grade powders are just that, cannister grade. They are formulated as such and not just incidents of uniformity;
The factories will not tell you what the powder and charge is because they are using industrial grade, sometimes blended, grade powder(s);
The factory loaders bomb test each lot of powders and at intervals;
See post #8 above...mainly detrermine or experiment with manuals to identify a good known powder and develop a good load to the velocities/accuracy goals you need.
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Old September 18th, 2018, 12:55 PM #12
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Specifications for loads change/evolve. As an example, do a simple search for mk118lr load data and you will see that the specs were changed from using RE15 to IMR 4064. Just because a powder looks like a certain type doesn't mean that it is. A good reloading manual is the best place to look for data. The Sierra manual has proved to be pretty good and they have a tech line you can call if you need or want questions answered.
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Old September 18th, 2018, 03:20 PM #13
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Quote:
Originally Posted by DaemonAssassin View Post
Think you could PM me the articles or links to said info?
https://www.youtube.com/watch?v=iDIu6Mivi-Y
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Old September 19th, 2018, 02:19 PM #14
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I've got it folks. I'll just have to find a good load for me and build my new drop chart.

Id like to use a more temperature stable powder anyway.
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Old Yesterday, 10:07 AM #15
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OCW

http://optimalchargeweight.embarqspace.com/
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