The Shiloh forum also has a lot of very experienced shooters who can steer you in the right direction. The main thing is to decide if you are going to be using smokeless powder or black. EVERYTHING is different between the two, and so many folks I see keep getting the techniques mixed up between the two. That only leads to frustration.
I am off this morning to shoot some bullets made with my new BACO mould through my 45-70. They start at .442", get patched to .449" and shot over 80 gr. Swiss 1.5F. Great fun!