2400 Substitutes?

[Sunray]

"...IMR4227 is a pretty decent powder in 357 and 44 magnums..." Does truly amazing things in .30 Carbine too. Been using it with a Speer 110 grain bullet for eons.

 

[rromeo]

AA-9 is a good substitute for 2400. Start low of course, but you can use the same data.
AA-5744 can be used in some applications.

 

[RealGun]

I found Accurate #9 loads for all those cartridges.