Tried the test with my .300 win mag 1-9 twist and 220gr. MK's with H1000 powder and Federal BR primers. Started 20 times .3 gr. back from max and went from there. They shot all over hell with no ryme or reason inside a 4" circle at 300 meters. Then when I got near max. it put the last 4 shots into .423moa. I guess thats how its done and thats my sweet spot. Now Im going to do the same thing with 240 MK's and Retumbo.