RE: Trimming .25 ACP brass (.25 auto)
OK MoturkeyTamer..............
NOW I know where you're coming from. In this case, I would sugesst just hitting the mouth with a grinding wheel from say a Dremel tool to get it where you want it. This shouldn't deform the case so much that it won't fit in the breech - it if it does, just run it thru a cheap Lee sizing die to restore it.
BTW Lee DOESN'T make a trimmer for the .25ACP.......I checked their site.