Loaded 30 rounds for my 20 inch 243 Winchester. I did zero load development. Jumped right in at the same load I use for the 105 Hybrid. Velocity was measured using a Labradar.
•Winchester brass
•IMR 4451
•Cci 200 primer
•Barnes 112 match burner
.010 off the lands.
•Average velocity 2921 fps with an SD of 13.
Right 3 shots are at 996 yards from a 243. Calculated BC was .320 G7.
Left 2 shots are from a 6mm creed using the same bullet at 996 yards and the same calculated .320 G7 BC lines up for both.
Second picture is 5 shots at 100 yards.
•Winchester brass
•IMR 4451
•Cci 200 primer
•Barnes 112 match burner
.010 off the lands.
•Average velocity 2921 fps with an SD of 13.
Right 3 shots are at 996 yards from a 243. Calculated BC was .320 G7.
Left 2 shots are from a 6mm creed using the same bullet at 996 yards and the same calculated .320 G7 BC lines up for both.
Second picture is 5 shots at 100 yards.