I was shooting my SA Loaded the other day and after the second round the slide failed to chamber the next round. I racked the slide and the next round in the mag chambered most of the way. I had to smack the back of the slide to get it to chamber the rest of the way. I fired the pistol and again the slide failed to go all the way into battery with a fresh loaded round. The slide was now stuck slightly out of battery again. This time it was stuck hard........so I stuck part of a cleaning rod down the barrel and proceeded to hit it with a big hammer. No...not really. I did place the guns slide, just below the guide rod, against a wooden bench, pointed down range and applied significant force. Finally the slide let go and ejected the live round. At this point I disassembled the pistol and discovered that the barrel had split in two places. One at 2 o'clock from just behind the muzzle to the first lug and the other at 7:30 from the muzzle to the barrel link. The bushing appears to be undamaged. There is no evidence of bulging anywhere and the chamber appears to be OK. I didn't notice any difference between the rounds when I fired the gun and the shots sounded the same as a normal round going off. I had just cleaned the gun about a week before this outing and remember checking the bore with a light before I put it back in the safe. The ammunition was factory Federal bulk 230 gr FMJ. I can't figure out why this happened. Anyone got any ideas?