I'm only measuring after they are trimmed. there is no point in measuring prior. If I put a short case in there, and it's short, that's okay. Federal brass does that a lot. My only real problem is that it will trim brass down ridiculously short, or leave it really long (1.775ish) It's because it indexes off of the shoulder of the brass, and the shoulder varies slightly from makers of brass casings. The
Tool is literally useless unless you are trimming all of the same headstamp of brass. Which is why i'm frustrated. It's touted to be able to trim brass quickly and go through hundreds of cases in an hour.
In reality, it only works for those people who buy bulk brass with the same headstamp. Range pickup, and bulk machine-gun brass is literally no good for it.