The Lyman 2500 Pro Magnum Case Tumbler is perfect for a high volume reloader. The massive 13 in. bowl has a 2 gal. capacity which is large enough to tumble 1000 38 Special cases with 7 lbs. of media. The time-tested and proven, heavy-duty motor now has features which improve the air flow to the motor. This improved circulation increases the amount of cooling on the motor and helps to extend the life of the motor. NOTE - Tumblers are not designed for tumbling loaded ammunition.