A while back I gave up on loading 10mm with Hi Skor 800-X as my Dillon 550B wouldn't meter that powder well. I have loaded a boat load of 10mm with titegroup on this press as well as many thousands of other calibers. ( 40SW 45ACP and 9mm) I just feel like I am leaving a lot of the table with titegroup and the 10mm. I have a few lbs of 800-X I would like to revisit. Is there anything I can do to the Dillon to help with metering of 800-X? or should I look at finding a better powder for the 10mm?