What did labradar or on the firing line chrony say? My labradar and target data don’t say same as far as ES/SD. Seen it numerous times. Over several different shooters data and experience
Now that others have had a chance to respond, I'll finish the "butt..." The data that was shown was all the data given during the match on my target. We were not shooting in a sterile environment, the was no Lab-radar on the line, etc. It wasn't a science experiment. We were competing at Borden, Ind. so that tells me that other factors influenced the outcome of each match and totals for each competitor. Below are those results. Now that I made more data is available, it doesn't appear that ES/SD are the deciding factors or are they? I don't know what the other competitors numbers were. I only know that I had a good day. In my mind SD equates into vertical spread at long distances. I use ES/SD to judge the consistency of my loads. I use those numbers during load development to find the most consistent powder charge. After that it's seating depth, tuner adjustment, and time at distance to prove loads. My load testing is done when conditions are as sterile as possible usually very early in the A.M. or late in the afternoon. I have done this long enough to know that at the end of the day, you have to weigh all factors into the results. The original question from the man who started the thread was "do low numbers on extreme spread & standard deviation always correlate to the smallest group?" My answer to that is, Low ES/SD is important and only one factor in loading and competing but does not in its self correlate to the smallest group.
These are F-open only results for that day.
Southern Indiana Rifle & Pistol Club
Mid-Range Prone & F-Class Match Results Match Date 10/12/19
2 FO HM Plant Brad 199 15 199 10 199 11 597 36
3 FO HM Draggoo Dwayne 197 7 198 10 197 8 592 25
4 FO HM Phillips Billy 195 7 198 4 199 9 592 20
1 FO HM Carroll James 196 8 184 2 193 3 573 13
2 FO MK Bradley Roger 188 2 191 6 188 4 567 12
3 FO UM Ohlmann Mike 189 5 184 2 187 3 560 10
4 FO MA Bray Tom 180 2 179 4 186 1 545 7
Here are two of my targets from Dead-Zero at 1000yd f-open. I forgot to capture relay 1. It sure looks like SD/ES
plays a part. Shot 7 on the second target was much slower than rest. It sure changed the group.