Hey Hap, I did a little looking around on those underwood defense round and they appear to be great when you want to go thru a hard substance like a car door, windshield, plywood. they tend to maintain their shape when they hit things like bone or glass and don't deviate as much as HP after penetrating a hard object. On gel test they seam to be more stable than a HP with a deeper penetration. Overall, I think I'll wait until the FBI, ATF, LEO start using them vs HP. I wonder why we don't see more information of that type of bullet in hunting articles. They sure look like they could cause a lot of damage and aid in stopping a threat.
