I loaded about 1500 9mm this afternoon on my Dillon xl750 and had 10 cases rejected by my powder check die for being over charged. After I finished loading and was cleaning up I checked the powder charge in the rejected cases and found they were right on the money. That is when I noticed that all the rejects were the same head stamp Xtreme I measured inside the cases from the web to the case mouth and found them all to have much less volume than my Federal or Blazer brass. I checked my loaded rounds as I boxed them and none of the Xtreme brass made it past the power check die.
