Another dumb reloading question

[asmurff]

All 12ga from left to right they are a Winchester Heavy, Winchester Xpert Steel Shot and Winchester AA 24 gram. All are 2-3/4 inch hulls fired by me are all of them reloadable. By my reloading books the 1st and 3rd should be with lead shot or buckshot. The Xpert should be left for steel shot I assume.

Am I right or wrong.

The AA obviously has a brass base, I'm not sure of the other two.

This shot shell reloading would be much easier if everyone would use the same play book and just one set of numbers.

Any help in the form of web sites who simplify all this or good books on the subject would be appreciated.