For your reference, here is Gold Dot terminal ballistic data (after IWBA heavy clothing) directly from SPEER's 2007 LE catalog:
Caliber/Weight/Penetration/Expansion/Test Weapon:
9mm, 115, 18.85", .510", P226
9mm+P+, 115, 15.90", .530", G17
9mm, 124, 16.43", .555", P226
9mm+P, 124, 15.88", .560", G17
9mm, 147, 16.93", .540", P226
.357Sig, 125, 17.50", .535", P226
.38+P, 135, 13.00", .554", S&W640
.357Mag, 125, 22.75", .394", S&W65
.357Mag, 158, 24.85", .402", S&W65
.40S&W, 155, 14.45", .630", G23
.40S&W, 165, 17.55", .583", S&W4006
.40S&W, 180, 14.10", .662", G23
.45ACP, 185, 15.00", .651", P220
.45ACP+P, 200, 15.20", .675", G21
.45ACP, 230, 14.55", .675", S&W4506
They also provided a data sheet for the .40 Short Barrel Load (IWBA 4 layer denim):
.40S&W, 180, 13.25", .648", G27
As a comparison, here's Winchester Ranger T terminal ballistics data after IWBA 4 layer denim. This can be found on Winchester's website in the LE section.
http://www.winchester.com/lawenforc...g/testing.aspx# Just choose the link to launch their testing sheet. Here's some of their data to save you some time:
caliber/weight/penetration/expansion
9mm, 147, 14.5", .66"
9mm+P, 124, 13.9", .67"
9mm+P+, 127, 12.2", 68"
.357Sig, 125, 12.1", .66"
.40S&W, 165, 13.2", .70"
.40S&W, 180,14.3, .70"
.45ACP, 230, 12.7, .72"
.45ACP+P, 230, 15.2, .78
Conclusions:
1) Ranger T does better in most calibers.
2) .357 Sig ~= 9mm.
3) If you want a .40 Gold Dot, I'd go with either the 180gr or 155gr. Skip the 165gr since it doesnt open as well through clothing or IWBA heavy clothing. See detailed data below, again directly from Speer's 2007 LE catalog.
155gr
=====
G23, ave velocity = 1162fps
bare = 12.05", .769"
clothing = 16.4", .632"
steel - 17.95", .502"
wallboard = 12.58", .677"
plywood = 13.10", .645"
Glass - 13.05", .572"
IWBA heavy clothing = 14.45", .630"
165gr
=====
S&W4006, ave velocity = 1099fps
bare = 13.32", .672"
clothing = 18.0", .618"
steel - 18.8", .494"
wallboard = 13.06", .628"
plywood = 15.42", .621"
Glass - 12.8", .588"
IWBA heavy clothing = 17.55", .583"
180gr
=====
G23, ave velocity = 995fps
bare = 12.19", .640"
clothing = 13.25", .709"
steel - 19.6", .507"
wallboard = 12.75", .673"
plywood = 17.10", .575"
Glass - 12.75", .612"
IWBA heavy clothing = 14.10", .662"