This may be to general of a question. If that's the case, I apologize.

I want to reload .223 and .30-30 and maybe .243 down the road. There are published loads for each round that use 4064, H335 and Varget. Is there any reason not to just buy one of the 3 to start out with. Or just buy the cheapest of the 3 and work loads up with that?

Some sources say that 4064 doesn't play with with .223 and the Rumbler load I saw uses H335.

Enlighten a noob.