When I talked with Jeff Tanner on the phone - or maybe it was an e-mail - don't remember, he told me he uses side cutters with the side ground off for trimming sprues. I used this same system last time I cast up some balls & it worked just fine - but I prefer the white handled wire strippers photo'd above.

I also use the wire stripers for pulling bullets from modern ammo. Run the case up through the hole in a press, grab the bullet with the stippers, then back the case down, which pulls the bullet. The flats of the stripper jaws stops perfectly across the top of the press. The pulled bullets have 2 little nicks (or 4) which make no difference in accuracy - even with tiny .172" bullets doing 4,000fps. Same sub -1/2MOA accurcy to 200 yards in testing.