I do the same as STU925 and it works just fine. Use an old RCBS case trimmer, remove the handle and put in a 10-32 x 3" all-thread stud. Use a 3/8 " drill and off you go. Make sure to use the collet!
"The Constitution is not an instrument for government to restrain the people, it is an instrument for the people to restrain the government, lest it come to dominate our lives and interests."
Patrick Henry, American Patriot