It also prevents cracking from spreading into the chamber......a problem with the original one piece barrels.....I believe its silver soldered. Making the barrel in 2 parts is for simplified machining.
^^^is it possible that you re-assembled it with the spring guide upside down? doing so causes a lot of wear and stress
Sounds like a good excuse to get a fancy Bar-Sto or equiv. barrelWhat to do?
Drop a WTB thread in the EE.
The military has a few hundred thousand (I joke) Brownings in the system. Every soldier in Afghanistan seems to be issued one, so there are at least 3000 serviceable ones. At some point in the depths of time the military encountered the same problem as you have. Their solution was to fit relacement barrels from FN. The identification difference between a Canadian one-piece military barrel and a replacement Belgian barrel is an obvious weld seam connecting the leg to the barrel. These welds break.
I have faxed in an order to Marstar for their barrel. Even though it's cheaper as CanAm has stated, with Sarco being across the border, I don't think it's worth the headache.
Cheers