What have you been using to trim 7MM mauser cases? I like the Lee drill chuck system with a shell base and a trim cutter. I haven't been able to find one for 7MM mauser.

I don't really want to buy one of the electric or manual trimming sets from rcbs or lyman.

RCBS used to have a trim length die you could use but they quit making it I think, can't find one of those either. Filing by hand is a pita and never comes out straight.
Anybody got any ideas?
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