Thanks for the good info.

No BOSS system. I did not assist in the sight-in process, so I cannot attest to any of the the details. I will help sight-in next time. I do know the two used a "lead shed" and Core-Lokt, 165 gr. Probably from different lots. Meanwhile I will clean the rifle and gently lap the barrel.

By the way, the Browning tech guy wasnot familiar with a torquing spec for the forearm nut.