My local powder purveyor is out of 2400.
It has been my "learning" powder for shooting CBs. My vintage 03 tgt rifle and will consistently group 10 shots in 1.5 in at 100yds w this load if I do my part w the Lyman 48. To date I haven't had much incentive to try other loads/ powders, but as I said, my local source is out so I need a temp substitute.
My best guess estimation x referencing several old and new manuals is that this load generates a velocity of about 1480.
Trying to match 1480 for 311284 w the powders I have on hand, I estimate 14 grs Unique and 13.5 gr of Red Dot (max load) are close, w Red Dot only generating 1418.
Comments welcome.