I got some 120gr SMK's in one of my recent purchases and along with that, a pound of IMR4350 and Reloder 16. I still have over 7 lbs of H4350 but I figured I'd give the other two powders a try. Sierra and Alliant have data for R16 and heavier bullets but not 120s. Sierra has R15 and R17 data for them but nada for R16. I haven't been reloading for that long and haven't run into this issue before so I'm looking for advice on where to start for these.
Thanks in advance.
Thanks in advance.