I have been using Dillon's carbide die sets, with Redding competition seating die on my 550 press. The results have been good, until a friend of mine started shooting my reloads in his Gen1 Glocks, which cause the infamous "Glock Bulge" in casings. My Dillon resizing/decapping die does not do a good job with those that suffer the bulge. I have heard of full length sizing dies, but never followed up on them. Any recommendations? I am assuming this will resolve the problem.