I took my 6.5 out yesterday and did some load testing with what I would call “odd” results. Components used were as follows, Nosler 140 RDF, lapua SRP brass, H4350 powder and Federal GM205M primers. I shot at 200 yards as it was a super calm morning. I lost the first 5 round group but found 3 of the shots at about 1.9 inches for a group. I have posted the results for the other 4 groups below. What I found “Odd” was how quickly it went from 1.9 inches to just over a half inch and then back out to 1.9 inches with just .6 grains of powder difference. Anyone else find this strange? I’ve loaded some more rounds up at 40.5 , 40.6 and 40.7 grains to take back out and see if the .570 group was a fluke and if there are any gains to be made.