Which is a whole wide range of brass to trim, but I'd trim all of them to 1.745". Some of them may well not even contact the cutter on the trimmer, however you'd end up getting nearly all them staying a steady size. AmmoSeek.com will not vet or endorse any https://556brass88642.techionblog.com/37853351/5-56-once-fired-brass-things-to-know-before-you-buy