I Underwood’s 10mm - 100gr Xtreme Defense Ammo

[Rojo27]

Actually the video may have been for the 90gr, so 18" for the 100gr may be correct, but still to deep in my opinion.
Thanks

Ken

Remember all those tests were done in "Clear Ballistics Gel".....  CBG is not equivalent to authentic FBI ordinance gel and it very commonly permits deeper penetration.  The differences are well documented.  Clear gel is much, much easier to work with and yields "similar" results but CBG results are definitely different than FBI protocol Ordence gel (which is the 12" to 18" basis). 

FBI Ordenance Gel:
Kind & Knox or Vyse 250-A ordnance gelatin tissue simulcast.  The mixture is 10%, by weight. Properly calibrated 10% ordnance gelatin is a reliable tissue simulant. Validation of ballistic gelatin is conducted by firing a .177" steel BB at 590 feet per second (fps), plus or minus 15 fps, into the gelatin, resulting in 8.5 centimeters (cm), plus or minus 1 cm, penetration (2.95" - 3.74"). Gelatin showed be stored at 40° F until just prior to testing.

[Kenk]

Thanks Rojo, saw that in one of the videos with the .177 BB, very fascinating

[Kenk]

Morning folks, just in from Underwood. In my limited opinion, 17.5-18" still seems like a lot of penetration for a SD load???

Hello Kenneth,
Testing the 10mm 100gr Xtreme Defender, we consistently pull 17.5-18" when using properly calibrated 10% ordinance gel. We're aware some tests online show other results and we have to question the quality, type, and calibration of the gel when this happens.

[Rojo27]

Morning folks, just in from Underwood. In my limited opinion, 17.5-18" still seems like a lot of penetration for a SD load???

Hello Kenneth,
Testing the 10mm 100gr Xtreme Defender, we consistently pull 17.5-18" when using properly calibrated 10% ordinance gel. We're aware some tests online show other results and we have to question the quality, type, and calibration of the gel when this happens.

Thanks for sharing Ken. 
My personal preference in handgun calibers leans toward deeper is better (within the perimeters of FBI 12-18" penetration spectrum).  Current conventional wisdom in handgun terminal ballistics says penetration depth is #1 priority.  Other wounding mechanisms follow in importance.  Not too many cases of people gravely wounded by projectile after passing through someone else first.  Can anyone sight one documted example?   Lots from shots that missed intended targets or ricochets. 
With that said, wouldn't use hardcast, fmj, Extrme Penetrator, or JSP in a handgun in urban, populated area; as all are known to penetrate way, way more than 12-18" in FBI ordinance gel; and walls, windows, doors, etc. 
However, this is a decision every single person carrying or utilizing a firearm has to make for themselves as the consequences, good or bad lie completely and totally with the party firing the shot(s).  Wise to make the most informed decision you can as God forbid it ever becomes necessary, you and your family will live the rest if your lives in the shadow of that choice.

[Kenk]

Well said, Thanks Rojo!