Here's some powder sites you should look at. They have discriptions of what works well with what caliber. The Hodgdon site is interesting in that it has data for IMR and Winchester also (it makes all 3), and will only list recommended powders for a certain caliber in it's reload data.
There are three kinds of men:
1) The ones that learn by reading.
2) The few who learn by observation.
3) The rest of them have to pee on the electric fence and find out for themselves..........