I love to see "studies" like this and think it's great that you've taken the time to figure these things out and more so, to share them with all of us. Thanks!
I am a little confused, however. I'm assuming you're shooting these from a .45 Colt, correct? If so, are these somewhat standard loads or T/C - Ruger loads??
How does the 9mm bullet compare to this if you're shooting primarily from a .45 Colt? ..or was the 9mm shown just as a comparison of a profile?
Is the Berry's bullet copper plated with a solid lead core or actually solid copper?
Maybe by now I've shown enough ignorance but now I'm really stepping out: What is OSB?
Sorry for all of the questions, I'm just trying to make the most sense of this.
Thanks!
....and again, thanks for sharing this stuff with us.