Im back for more info this time on steel shot

[mrmiskin]

OK so thanks to all your suggestions and sage advice the shot shell reloading in lead went great after I got that hole in the center with that one bb stuck in the middle of it taken care of. Now thinking about steel shot and this is what I have read so far. You need a wad within a wad to use as a spacer in your plastic wads. 20 gauge for 12 gauge wads 28 for 20 and so on. They look like they are made out of a lot of different materails. What is the best in your opinions? As far as thickness I guess you have to experiment until you get a good looking finished product. Now on top I have read about shot cards, are they necessary? I have also read the best powder is alliant steel, any thoughts? Do you need special hulls and plastic wads for steel? I understand that dropping steel shot and steel powder is pretty inconsistant and it should be measured and then put in the hull. I am using a mec junior and it has been great so far but measuring by hand is not an issue I have the rcbs powder dispenser and scale combo and it is great. finally what is a good steel shot book to get so i dont have to keep bothering you all?? Oh i am thinking of loading 12 and 20 gauge # 4's. well thanks in advance for all the advice.