I hope you dont mind re-hashing this. Could you please explain to me the Audettes ladder again. I dont think I comprehended it very well last time. Specifically WHAT is it you are looking for? Do you do this through your Chronograph? When you bump it a tenth of a grain at a time and you see a "group" is this an accuracy node? Or have I got it all screwed up in my pea-brain. Thanks in advance to a newbie. T.