BlackApache

Here is a couple of close up side views of the casing.

Using a Lee Pro 1000 with a Lee Auto Drum. I have a good idea how the double charge happened but I wanted opinions of others who have more experience than myself.

I really didn't want to post this for fear of berating but I feel it is more important to find out how or why this happened. My reloads are 147gn X-Treme Round Nose, 3.2 gn Titegroup with a C.O.L. of 1.15. so nothing unusual for the load. I was shooting with 10 rounds in the magazine using a mantis to establish muzzle rise and how long is took for me to get back on target when in the middle of the string this happened...........(see attachment) I've received a couple of responses, one person said that the round didn't go all the way into battery and fired out of battery, another person said it was a double charge. What do you guys think?????? Thanks in Advance.