i use the lee system for most standard cartridges,odd-ball or wildcat stuff.i use the lyman trimmer with the cutter that resembles the lee,it has multiple knives and is more than .510 dia.,not like an ald one i had that was like one blade,talk about blisters with that.anyway,i converted the lyman to a hex shank drive,use electric screwdriver,drill,etc.
a good trick for the lee sytem is to mount your cutter,and a couple of chamfering tools into the front of your bench or drill holes in a piece of aluminum block,or even hardwood and attach that to your bench.drill three holes ,cutter,then chamfer inside,chamfer outside,put acouple of set screws in perpindicular to these holes to hold each cutter in place.when ready to trim, screw your case length gauge into the cutter,chuck up your lock stud,insert a case ,trim,inside, outside chamfer as necessary eject case and so on.seems to be a little easier on the fingers.only thing that moves is your driver.shawn