A buddy of mine came over with a block of Ballistic Jell. He does tests with this stuff all the time and wanted to do one with the 9x19mm, 124gr +P Gold Dots he carries in his Glock 19 against a 45acp, 230gr Gold Dot. He wanted to use my G30 for the test so both rounds would be shot through guns with similar length barrels. Test was conducted at approx. 3 feet from the block of jell. Came up with some pretty interesting results. Here's the info on the 9mm first: Penetration=12" Temp Cavity=2 1/4" Depth of max. expansion of bullet in jell=2 3/8" Recovered bullet dia.=.655" Recovered bullet weight=124grs Hight of bullet=.380" Now for the 45acp: Penetration=12 1/4"" Temp Cavity=2" Depth of max. expansion of bullet in jell=2 1/2" Recovered bullet dia.=.683" Recovered bullet weight=230grs Hight of bullet=.422" I'm going to try to post some pics as attachments, hope they come out. If it'd not been raining we'd have taken my Chrony out and got some real world velocities too, maybe another day. I've still got some 45acp handloads with XTP's I'd like to test. Anyway, interesting day, kind of opens your eyes to all the "caliber wars" junk that goes on. Seems like either round would have done the job pretty well. P.S. in the top pic the 45acp is on top and the 9mm in on bottom.