thanks, gordon11 for your kind words. The 'honor' is mine that anything I've done has helped. I'm also pleased to see you doing wetpack tests. Just too old anymore to carry the heavy wetpack box to the range.
It appears that CorBon has made a poor decision to change bullets on their DPX. I actually looks like they are buying the bullets from MagTech. In our early tests in 2006 with DPX when it first became available, I had a box of MagTech's 77gr copper JHP for comparison. It didn't expand. I also tested it with a Sig P232 with the longer barrel and again it didn't expand. Here is a link to the first test where I have added a picture showing the comparison of the two. Note the smaller cavity on the MagTech.
http://usrange.org/smf/index.php?topic=317.0
Those of you who are CorBon fans should contact them and complain about the change.
I'm no longer a CorBon fan. Wasted money on their .32NAA ammo and a pistol several years ago. Recoil was terrible and many malfunctions. I also had miseralbe luck with their PowrBall stuff. Plus their 90gr. JHP ammo didn't expand for me with the P3AT. Reports are in my WWW thing at page bottom. Mostly I find their stuff is expensive compared to other brands. So I just don't use it anymore.
Whatever,
og