Originally Posted by uz2bUSMC
Hmmm, not what I've seen in my testing nor the gel tests that I have seen around the net. Can more velocity cause more penetration from over expansion (petals folding back around the core of the bullet)? Sure. Most times velocity hinders penetration because of increased deformation of the projectile and the increase of resistance from retarding forces. The difference I've witnessed between the calibers was much more pronounced in the way of destruction, if you will, not penetration.
Now when you say "over penetration' do you mean it just simply penetrated more than the others? It actually takes a lot of penetration to really count as over penetration.
It's like that 180 grain Underwood test tnoutdoors did. The Gold Dot completely expanded, and the petals bent all the way back with the jacket almost separating from the core. I am sure that bullet expanded past its limit, and the velocity of the Underwood load kept it driving deeper into the test media.
I have thought about what you speak of too. I often wonder how much deeper the Underwood 200 XTP will be driven as compared to the Hornady 200 grain load.