I tumbled some 00 buck today. [II don't have a tumbler, so made a tube from 4" PVC pipe a food long with a cap glued on one end and a screw on cap on the other, split a 1" dowel in 1/2 and screwed the two pieces into the pipe. Put in about 5# of 00 buck and 2 pieces of pencil led about 2" long. Them to further the redneck engineering, I placed the pipe on my tread mill and turned it on..... 1 hour later I had the prettiest round buck shot you could want. Here Texas Ranch Country we do with what we have.