Hey guys, I am wondering if any of you have any experience with once fired military brass in 300 win mag? I purchased some and am having problems re-sizing them. I have standard full length re-sizing dies. For some reason the cases are sticking or in some cases not even chambering all the way. I first thought it might have been the shoulder wasn't getting bumped back to correct head space dimension, but it seems as if the last 1/8th inch of the case just before the belt isn't getting sized. Not all of the brass is doing this, but about 20% of the cases. At the current cost of 300 win mag brass I hate to toss any. Not to mention the fact that I can't find very much. Any suggestions?