Great presentation! I'm not real worried about the expansion but of course I'd like to see the round fully expanded. I carry .40 Speer 165 gr Gold Dot in my weapon & this confirms my research on that ammo. Living in Wisconsin you can see many people fully clothed & insulated in the winter. I won't have any further doubts. I would like to see a little less penetration but I'd rather have too much than too little.
I also carry Federal Tactical 180 gr HST. I'd like to see the same test on that if you have the time & inclination. I have a mag loaded with Gold Dots in the gun & the other with HSTs most times.
Thanks for posting your findings.