The older Stoner barrels were Liberty barrels and shot really well. I have one that’s a 20” with their SDMR profile. The ones made in the last couple of years are said to be made by Bear Creak Arsenal and it’s pretty hit and miss with them. I also have one of these BCA in a 20” 6.5G and it’s a copper mine. Not very accurate. I may waste time and money trying to break it in or just say screw it and buy a different 6.5G barrel. The easy button is to buy a barrel from a quality barrel maker. Sometimes the extra $100-$150 is worth it in components and time.
