BCA barrel is choking at the throat

[FLshooter]

BCA is pretty lenient on their returns.They will send you another barrel, because those things are mass produced, they have plenty of them. And they’ve probably gotten them for pretty cheap.I’ve gone the return barrel route from BCA.You send them junk, they send you back junk.And all the while you’re wasting your ammo.
Best thing to do is cut your losses and re-barrel with a quality barrel.