I want to HP my 30 cal cast boolits for hunting. I tried using a drill press without much success, just could not keep the HP centered perfectly. I had an idea of using a Lee Factory crimp die to center a loaded round, making a drill guide and drilling with a hand drill. I had a friend of mine who is a tool maker machine this to fit inside of the FCD. Works great! I adjust the FCD just enough so that there is no play. This can be checked by keeping a finger on the tip of the boolit and screwing the die in until there is no noticeable play, the boolit is held secure and centered in the die. The drill guide is then installed in the FCD. I use a # 40 drill bit with a stop to control depth. I need to do testing to find the best depth yet. Anyway, the pictures should explain better than I can type so here you go...
308 Win loaded with a Lyman 311041 next to my drill guide.
Round loaded into the Lee FCD
Drill guide installed in FCD
Drill bit with drill stop installed
Same round after HP drilled