yeah I have a note book with individual pages set to various powder burn rates, when I Find something new and verify through a couple of sources I add to the appropriate page.
I found it has come in handy, more so of late with the shortages, eg managed to get hold of some RL16, never used it before but research showed it may take the place of 2209 in my 30 06 with bullet 165 and above, same with some N550 a forum member kindly sold me.
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