Eaglet, all I can say is wow.
I admire your tallent with numbers.
Lets reflect a bit of recent history here. Your findigs make me recall the day or two I first spent with the Bergers and load development. My load that I used with the 300 SMK's of 92.5 gr of H-1000 was showing slight pressure with the Bergers. I backed it off 1 gr. as I am not a fan of hot loads. So I needed to find that new MV.
I had heard that the Bergers were faster due to the less barring surface too. So first thing I did was plug all my info into exbal and then do a "Tragectory Validation" at 700 yards. My proven drops with exbal and the smk's used a MV of 2805, this load chronographed on my chrony either side of 2850. So ater the tragectory validation at 700 with the reduced charge and the bergers it was showing a MV in the low 2700's I don't rember exactly but like 2710 or so.
I was troubled by this, how could 1 gr drop me 100 fps, people had stated the bergers were faster too. I had a hard time believing this. So I started asking questions and was quickly told my method of dropping MV was a poor practise. I agreed, and bought LB3.0 as I felt I was behind on technology with ballistic programs. I felt that my mv should be around 2770 or so (just my guess) this was before I chronoed. Then my chrono confirmed this. But obviously is wrong.
Eagle as I was shooting yesterday at 700, 1042 and 1342, and recording drops. I also noted in my data what I felt was needed for corrections to the dial ups to be spot on at each distance. My recording were 700/10.8 , 1042/22.7 and 1342/34.7. So I am excited with your solution to my problem.
As soon as I get through this cup of coffee, I will plug this info into LB and Exbal and see how it all works out. Then as soon as I can I will be out shooting again using LB to see how it all applies to real world shooting.
I also am in search to find a Oehler to shoot my rifle through. I just need to see this.
Right now I am back to my old belief that most all of us are being fooled by chronographs. I dont think we can spend $100, $200 or even $500 on a piece of equipment, to measure the speed of a projectile 1 1/2" long and traveling at a speed of 3000 fps. and expect this equpment to be accurate. How can something that cost only a few hundred dollars do this? Yet we undoubtingly rely on them. And even more so, we believe that when they say 5 or 10 measured projctiles fell into with in less than 10 FPS of each other, we believe it and are happy. I am not sure I buy this. Right now I think Eaglets method of finding MV is far more accurate than any chrono I have been around in my 40 years of shooting. I also believe that your 1000 yards group is the best test for ES.
Thank You Eaglet and Bigngreen for your help here. I will send some more lead and report.