this is very much dated information, and it's prime utility is reserved for those who have ratholed some of the old dupont powders....but, for those of us who meet those qualifications, this is a gold mine of low pressure data. michael's post regarding the use of 2 3/4" data in 2 1/2" hulls with roll crimps, opens the door to many useful loads - IF YOU STAY IN LOW PRESSURE TERRITORY....

http://pdf.textfiles.com/manuals/FIREARMS/imr_reloading.pdf

best regards,

tom