I have been chasing around a pressure issue and ran out after work Friday to test my newly reworked brass compared to some new brass and then out for a hunt. My thought was to try some loads in the reformed brass to see if I was still getting pressure and then back down the charge etc until the pressure signs went away. Long story short, the pressure was still there and the speeds high. All the pressure loads were over 3000. I backed down and played with 215 and 210 primers. What seemed to work was 56 grains and 210 primer. At .005 off the lands the pressure signs were mostly gone and the speeds: 2978 2981 2974 2983 2972 2972 with 55.5 grains and 215 primer, .005 2970 2982 2982 2966 None of this equated to a great group down range at 100. My hold sucked honestly and everything was under 1". I was rushing and not taking the time to shoot precision but really I wanted to try and reduce pressure to a level that seemed OK and start over. Does SD and ES have anything to do with tight groups? I am just being stubborn and worrying too much about velocity when I should just back it down to 2900 to 2950 and look for SD/ES and that give me an accuracy node? I want to get as much velocity as I can with decent accuracy (.5) or less but kind of wondering if I am going about it all wrong. I used to not worry about the chrono, shot the load until no pressure sign, found seating the gave accuracy, called it a day.