I have been full length sizing some used 7mm brass I bought from a local a few months ago with Hornady dies. I am using Hornady One Shot case lube. After sizing I am trimming to 2.49 inches. When I go to chamber the brass without a bullet I cannot get the bolt to close. I have the die adjusted all the way down to no avail. I've read a little about a "bulge" above the belt which sounds like it could be the problem. How can I diagnose/identify the belt bulge? Shouldn't the die take care of it? Any help/ideas would be greatly appreciated. Thanks.