I recently found a problem with my 30-30 rounds touching the rifling on my 94 when. Chambered some of them. I fired them anyhow. No problem. Problem came up when I couldn't chamber a round. It was too fat to chamber. I went over and looked at the rest of my loaded ammo and found two more like this. How did this happen? I run all of my boolits through a Lyman 4500. This is where I am sizing them to 309 and applying my gas checks. What could I be doing wrong? My mold is one of least trouble and it casts great boolits. I am using ww's with a little tin if needed to get good fill out. The lube I'm using is carnuba red. The fatness of the boolit is only in the nose, not in the neck of the brass. It almost lie it is squished. I just don't know.