#73/ #92 Win/Miroku 44/40 specs ?

[J.B.]

My IMR4227 was powder I purchased for loading my brothers 22 Hornet and my 218 Bee years ago. Its likely about 35 or so years old... Is that past its 'used by date' ? Always had an almost sweet smell when it was new but different to the old
IMR4831 I used to use in my 25/06 . An internet search shows a few using Re7 and even 2400 in 44 WCF with success apparently and I have both of those. Cant get any Blue Dot currently..or any Alliant powders for that matter. Winchester ball powders have disappeared again...even before the Covid tango started and Hodgdon ball powders havent been available here for years. I can duplicate H4227 with our AR2205 as its the same powder but I've not located any data for that option in this cartridge.