The CZ didn't penetrate the first sheet, but made a sizable dent, so we did not recover any rounds from it. Next up was the XD with 95 grain Aquilla IQ ammo, and Winchester hollow points whose specs were known to me at one time but considering the case is long gone and the box is a plain white affair I have nothing more than a vague recollection of it being a 155 grain ranger. The Aguilla did not deform very well as it penetrated two sheets then stopped without deforming the the back 80% of the bullet. The Winchesters penetrated the same as the Aguillas did, but deformed the entire bullet into an even, relatively round, button like piece of copper and lead. Next up we had the .44 mags shooting Winchester 240Gr Jacketed Soft Points and Hornady 225gr LEVERevolutions. The Winchesters deformed unevenly penetrating 3, almost four sheets each time. The Hornadys deformed evenly penetrating 4 sheets and nearly penetrating the final fifth sheet more often than not.
Below is a picture taken of some of the deformed rounds (Winchester .40 S&W, Winchester .44 Mag, Hornady .44 Mag -- left to right):

I figure this may be interesting to some of you so enjoy.