I was in my local gun shop today looking at holsters for my G33. The elderly man that runs the shop asked me what I carried and I told him it was a Glock 33. He said "If you don't mind me giving you a little advice, get a 40S&W barrel for it and lose the 357sig barrel". At first I took it as a basic "my caliber is better than your caliber" comment and just kind of ignored it. He then proceeded to tell me that he shot someone in the store last year with a Glock 32 in 357 sig with 125gr Gold Dots. That got my attention real quick. He said that the round went in the man's chest on the right and exited his lower back without any expansion. He said that in his opinion it was "travelling too fast and didn't have time to expand". That statement didn't make sense to me since that is what the 357sig is supposed to do, travel fast. The man that was shot survived and he stated that it was a very close in shot (around 7 feet). After I left the shop I called an LEO friend in the city and asked him about the incident. He recounted the story (which is a whole different post for sometime) and said the same thing in regards to the 357 sig. He said that the 125gr Gold Dot 357 sig round was a full through and through and that it never expanded based on the exit wound. His theory was that the shot was very close in and the round was travelling at max muzzle velocity when it hit. It struck no bones. The man that was shot was leaning over at an angle when struck. Now, based on this I am questioning what may have happened and whether or not my carry ammo is better for expansion under similar circumstances. I carry 147gr Hornady XTP in my G33. Any thoughts on this?