On this round in 4LD testing, manufacturer data is:
Penetration: 17.55"
Expansion: .583"
http://www.le.vistaoutdoor.com/wound...omparison.aspx
One test from Doc I found shows:
.40 S&W Speer 165 gr Gold Dot JHP; ave vel=1092 fps (S&W 4006); gel cal=10cm@578fps
BG: pen=15.0" RD=0.63", RL=0.37", RW=165.2gr
4LD: pen=16.5", RD=0.55", RL=0.51", RW=165.4gr
https://www.m4carbine.net/showthread...65-gr-Gold-Dot
However, you are predicting about 11.5 inches of penetration?