ulflyer
Member
Harbor Freight has both but I don't have the foggiest as to which would be best in a vibrator tumbler. I use walnut now, it seems fairly fine, and it cleans and gives a satisfactory shine but have no idea of "grit" size as it was bought from a seller at a gun show. I clean only handgun cases: 38, 45 acp, 45 colt. Which would be best?