What size are the blanks? I've made Barons from 5/8" blanks and I'm pretty sure that Billy(alamocdc) said he has made them from 9/16" blanks. The most accurate way to drill is using a Beall collet chuck after turning it round. The next most accurate way to drill is on a drill press using a PHD vise, and if you get it set up just right, it will be as accurate as the collet chuck.