I thought of the dial caliper, after I logged off, duh to me. I can't seem to find mine right now.
I inserted the OEM full chokes, and the briley's still rattled, so I put 1 wrap of black tape around the sub's, and they slide in, and out just as easy, and they don't rattle. I still haven't shot it, the local skeet club decided that it was too cold, wussy's, and didn't shoot tonight. Will I be ok with only 1 wrap of tape, because the rattle is annoying.