I have a minor gripe with my 12 ga Pedersoli. The screw in chokes have a slightly larger inside diameter than bore diameter. This leaves a small lip or shelf where the choke tube joins the bore. Not a big issue, but kind of a pain when loading, the wads catch and need to be forced through and no doubt deforms them slightly. Is this just my gun or is it an issue on other screw in choke guns?