I went shooting today with a friend from work. He has invited me on a hog hunt on his family's land in October so it seemed the least I could do to provide a place to sight in rifles. After a rather uneventful rifle shooting session he suggested shooting handguns. I was shooting some hot handloads in my .45 Colt 4 5/8" Blackhawk. He was shooting a Glock 23 at another target. When he came back to the shooting table I noticed he was loading the mag with soft round nose lead 180 grain .40 S&W ammo. I casually mentioned that it is generally accepted that soft lead bullets in a Glock is NOT a good idea. He shrugged off my advice and pulled out a .40 S&W Beretta. This to he loaded with the soft lead round nose ammo. I was looking at the box while he was shooting. The ammo was made by Lancer Ammo. It had Winchester brass and soft round nose lead bullets that you could dent with your finger nail. After about ten rounds I heard my friend cry out in pain. He brought me the pistol and the bar that runs between the trigger and the sear was blown almost all the way off! Only the hard rubber grips were preventing it from dropping off. The small spring that works the bar was broken and my friend's hand was powder burned. When we freed the slide It ejected a shell that was a classic Kaboom. The ENTIRE unsupported area of the shell was peeled back.
My friend seemed uninformed of what a Kaboom was and how close he had just come to injury. I gently tried to explain that this was what I was trying to tell him about soft lead bullets in his G23. However, I had no idea that the Beretta would Kaboom with this ammo. I just checked the Lancer site and they stated thier brass is "remanufactured" but I did not see them listing the kind of soft lead 180 grain .40 bullets that blew up today.