Using the dillon case feeder with 300 bo brass i found a fix that allows smooth case feeding. A fix that costs absolutely nothing. On the feeder discarge opening, on the left side is a piece of metal. It works to protect the plastic case feeder bowl. Simply tilt the top of the metal gaurd to the right. The right position will make an angle, bottom of the metal postion normal, top canted to the right. Insert 1/4" or so of shim, plastic toilet shim in my case, into the gap you create. Moving the metal allows the mouth first cases to pass over and then drop as the body clears the feeder body. Cases in proper orientation drop normally. Fill or feed slowly and allow all the cases to orient long ways or you get jams. Initial fill with small akro size bin. Go slow and you will find the best case count to fill er up. You can load a lot of cases without cases sliding under the plate.