Originally Posted by
Semisane
Great report Ron, and well done on the testing procedure. I'm impressed at how close the BH velocities were in the two pure BH groups, except for that first shot (1679 fps). Do you think that was because of a cold clean barrel?
The barrel was indeed, clean and cold.
The data that impressed me was the very last shots on a hot dirty barrel--the 110g BH shots. Uniformity like that isn't regularly seen with center fire rifles using weighed charges. It seems that using a powder drop works just fine for measuring BH209.