I've never yet found a need to trim a single case though. Are you trimming based on your chamber, or on book trim specs? You'll likely find the chamber is significantly longer than the book specs for the brass.
Right, I don't necessarily trim, I just check Case Length with unknown brass...I don't remember the last time I actually trimmed a piece of pistol brass in any caliber...decades.
If after measuring my Chamber Length I had a batch of straight wall pistol brass that was shot so many times that it needed trimming, I would recycle it rather than take the time.
The OP may be using an aftermarket barrel and many of those have match chambers, so I would check to verify measurements.
