I never knew much about this issue until I bought a .38 M&P which shipped in 12/41 off of Gunbroker. It was advertised as a .38 special and had a 4" barrel. I took it to the range and the fun began. During the practice loadings I noticed the rounds just fell out of the cylinder when I used the extractor; that had never happened before. Then during firing the gun froze up after about three rounds and I almost needed a hammer to get the rounds out.
That is when I learned about how folks modified .38SW into .38 Specials. I tried firing .38SW in the gun; they worked much better in the cylinder but lead was being shaved at the forcing cone and I did not want that. I found a .38SW Victory barrel, had it chromed to match the gun and the gun worked liked a charm.
Later discovered the gun shipped as a 5", .38SW, BSR. It is back to that once again. I have no issue with Magtech .38SW rounds or PPU rounds. Pretty good shooting gun.
That round in the 8 ring was the first firing after the barrel change. I had my eyes closed and head down.
