Francis Kelly (Paco) isn't the type of person that would put something out there that wasn't Tested, Tried and Safe. Here's a couple places you can go to see pictures and read more about it.....
http:// www.gunblast.com/Paco.htm
http://www.sixgunner.com/paco/
Also read the threads about it on the .22 ammo forum.
BTW.....Your supposed to use a flat surface when using the tool. I use a 3/4" thick sheet of Nylon/Teflon. Which I usually do my leather work on. If on a flat Clean suface it would be really hard to hit it on an angle.....Lot's of people on this site have used the tool successfully. Paco even delibertly exploded a round during testing, to see what would happen. You can read about it at the site.
Oil Well, He does warn you to keep your hand/fingers from covering up the hole at the top of the tool
