I too have some unknown reloads from a guy that has passed away. I know that the Primers are Large Riffle Mag but no idea on the powder or bullets. I will be pulling the bullets and dumping the powder. The other issue is I do not know if the brass was full length sized before they was loaded or not. I will have to pop out the live primer and resize. I might just cut the decapping pin off and go that way, leaving the primer in place.