Thank you for all of the info. I reloaded a few this morning. I found that unless I flared the mouth of the case slightly (1-2000th) I ended up crushing the case when I tried to seat the bullet.
I ended up using my 9mm expanding die to do this, being extremely careful not to do anything other than a very slight flare at the mouth of the case. I now have some rounds loaded, and am going to chrono them and see where I am at. I loaded a few with 7.2, 7.6 and 7.9 of Unique.
Another part of my test is going to be small pistol mag primers. Yes, I know its not advised, but that's all I can get my hands on. I plan to chono them also and look for signs of overpressure. I was able to do this with my 9mm loads and as it turned out I didn't need to adjust the amount of powder. I was just looking at the case and primer then. I bough a chrony yesterday and am going to use it for these tests. Hopefully I wont have to change my user name to "one handed Joe"
