This discussion is very timely for me. I just finished loading up some new 9mm test rounds... I don't remember the target OAL off the top of my head, but I checked every round of the 60 test rounds I loaded up. I rejected anything that wasn't within .005" of the target OAL.

After hearing of the variance in the Winchester white box, I guess I might have been a little too picky with my reloads...