Check out the loadbookUSA pamphlet for the 12 gauge. LoadbookUSA compiles other people's data into a caliber or gauge specific pamphlet. If you get the 12 gauge pamphlet it will have the Lyman data in it, as well as activ, winchester, alliant, dupont, and anybody else in the ammunition business who was willing to let their data be published. It is very useful for double checking loads for oddball hulls I sometimes come across.