I want to work up some loads for my Marlin 336 (30-30 cal) using cast bullets. I can find lots of data using a 170 gr gas check bullet so this one won't be a problem. I have read about but can't seem to locate much data for 150 gr cast bullet loads. I am intending to use the RCBS 30-150-CM mold bullet sized at .309". I am also interested in a 100 - 125 gr cast bullet load but again no load data. Do any of you have any experience with 150 gr and 100-125 gr cast bullet loads for the 30-30?