Getting back to the original theme of the thread. To reiterate, the new Hornady brass came in varying lengths. Every one was less than 1.70 but greater than the lower spec limit of 1.69 inches. I chose 15 cases as close to the same length as I could find out of the 25. I trimmed .0005-.001 from them to get 15 at 1.6935 inches. Here's the results of the first round of shots. Lengths in red are below Hornady's lower spec limit of 1.69 inches.
see further in thread for latest chart
Interestingly, the more power, the less shrinkage. I suspect this may be due to the higher power cases binding better in the chamber upon ignition. True to task, the lower power loads had the classic soot down one side. The middle and high power loads sealed pretty well. As you can see, over half the cases have fallen out of spec after just one shooting. It will be interesting to see exactly how far our of spec they will become over time. I realize some of you don't give a darn about spec or not as long as they are reloadable, but you have to ask why Hornady made the spec if not to abide by it?
Hoot