[Unclenick]

For .308 and .30-06 I used to trim back an extra 0.005" and let them grow 0.015" from there before trimming again. Every 3 to 5 rounds, depending on the bullet and load. Then I got a Giraud trimmer and now I do it right to spec every time I reload, since it only takes a second. That way, if I want to crimp I'm not having to adjust the crimp die for the portion of the trimming cycle the cases happen to be in.