Rick49

I misread. I initially thought you were saing you saw someone shot; not some...one...shot

Due to the availability or lack there of, I have recently been using IMR 4756. The load data suggested low end at 6.4 and high end 7.0 with a 230gr RN plated bullet. I had a few feed issues with my test batch. In fact I was not at all satisfied. I increased the powder to 6.6 and must admit, it has made all the difference in the world. I will continue to use this powder, as I see no reason not to. It is consistantly availabe at $20 per lb and my guns are functioning without a hic-cup.

I have the exact same problem with 45 acp in a Dillon 550B. As much as 10% case gauge failures. I have used RN plated only. My line of thought has been this, If it was the press or dies or a combination of the two, I would expect to see more gauge failures. I have assumed when I police my brass I probably get at least 10% from an unknown origin. The numbers are close enough that I cannot ignore the possible correlation.

If it fit snuggly, it is the right primer. I have a mixed lot of 45 acp brass. Some have small primer pockets and the majority has large. I discovered this when hitting the brickwall as mentioned previously. i spent a few frustrating days trying to get a rythem going with a new Dillon 550. I disassembled and reassembled the primer bar and cup several times before I was told to check the pocket size on the shells that wouldn't prime. Sure enough they were small pockets. Now I make sure they remain seperated and check them again when I conduct my initial case check.

Due to limited options available I have been using IMR 4756 with a 230gr RN. 6.6 grains and it cycles in my Kimbers fine. The begining load was 6.4 grains. It was a hair too light.