What time we have containers open plays little on the longevity of powder , it`s temp swings , the more stable the temps gives less chance of the moisture which is in the powder itself to migrate & condense.
I have a cash of H-110 I bought yrs. ago & "found" I called Hodgdon & it was made in `88 & it still gives the same velocitys accordin to my notes .
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GP100man
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