Thread: H-4227 VS IMR 4227 confusion
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Old 10-22-2014, 11:24 PM
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Default That could be....
Quote:
Originally Posted by Mississippi Mike View Post
OK.....

So, the new powders are the same..... right?

The old powders are different.
Maybe this is why the tables show both. I bought the latest Lee manual about 3 years ago and it does show both. I guess they can't drop one or the other from the tables until enough time has passed for the old powders to be used up or disposed of.

Good info guys!!
That could be a very long time. Powder has an indefinite life and surplus WWII powders were available for decades.
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