Ran the 737 nano Tumbler for the first time. After some small modifications it seemed to do a rather good job. The modifications were addition of rubber dampers between the bowl and the base and the bottom where it meets the ground. A small rug might suffice here. It did do an acceptable job on 20 ea. 6.5x55 cases and think it could easily handle twice that. For the price asked by MID SOUTH it seems like a good buy. roger