Thanks guys. Since I have 2 unopened cans of 4350, I guess I'll start with that, saving the other stuff for the .270s. Besides the NPs, I've got a bunch of Sierra PHs that I can use for practice. They have a very similar form to the NPs and a a load that's okay with the Noslers should be okay with the softer Sierras.
One good thing is that these powders can be found just about anywhere, unlike a lot of the medium burners.
