COuntZerO
"I think I've seen some gelatin tests that show penetration of lead BB out to 14 - maybe he means all of the pellets don't make it 14" #4 Buck seems to go 14" Here are the jello tests:
http://www.shotgunworld.com/bbs/viewtopic.php?t=109958 "
You need to look at the calibration BB on those tests. It should penetrate 3.34 inches. You'll see the BB in these blocks is anywhere from 4.5 to 6 inches. This is a sign they used the blocks at too warm a temperature or they are not a 10 percent mix. You can easily deduct 20% at minimum from these penetration numbers. Some cases it's much more.