09-10-2020, 06:43 PM
Not a 6mm Grendel guy but I use the rcbs trimmer Trim-pro I think it's called, for which I make a standard-trimmed-length case for each caliber and set the trim length to that case, then put it back into the dies-box. Then all my cases get trimmed to that length. Whenever I need to trim that caliber again, out comes my std case to set the length, then back into the die-case for storage. That case is already re-sized btw but oal is what the rcbs tool goes off of.