i just got 2 ea. 6 cav lee 45 colt 200 gr molds. i like to size .453. they both are a little small. i would like to lap them .001+ bigger. i was thinking about getting the molds going good then cut the spru and leave the bullets in the blocks. sit the block on a drill press and drill a small hole in to the bullets but not all the way. then put in a drywall screw and cut off the head. take out the bullets and chuck up #1 in a drill . use tooth pase at a slow speed.. close the mold around the bullet and repeat as needed. how is that? i have never laped a mold but see it is a common thing to do. by consern is getting the hole centered. has any one done this to this same mold? how did it work? would a ww cast or lion type cast bullet be better?