Anyone here use Wilson barrels

[SDW]

Interesting. At a MV of 2500 FPS, my calculator, Ballistic AE, would have your Berger 120 Match Burners not going trans-sonic until about 950 yds out. I can't say if there are flaws in my app or my input data though. I ran a simple calculation. The bullet's size and G1 BC (.46?) at that MV. Program defaults to Sea level, 70% humidity, zero wind.

FWIW, when I create a calculation using Hornady 123 ELDs at that velocity, it shows these bullets staying supersonic out just past 1050 yards.