As many of you know I got a lee pro 1000 reloader and I am having issues figuring out what measuring disk to put in the auto measurer. I have IMR 700-x powder, and Barry's 115 grain copper plated bullets. my reloading manual says 4.0 grains to start with. and ive got 2 pamphlets from LEe's that came with the press that have all kinds of numbers which I have no idea what they mean. SOMEONE PLEASE HELP ME! according to a chart titled APPROXIMATE CAPACITY of all popular brands for each cavity, it looks like using the disk cavity labeled .53 will yield 3.9 grains of powder which is the closest thing to 4.0 I can find. the next one up on the IMR 700x list is 4.2. I just looked at Hodgdon.com and they had a nice chart system but it says 3.3 grain for LRN and 3.9 grain for SPR GDHP whatever the hell both of those means. however, im assuming that I should go with the 3.9 grain because my reloading manual says 4.0 and now hodgdon is putting me pretty close to that too.