B.O.S.S. by Browning
Is it 'snake oil'?
Understood that, maybe, it can be 'dialed in' to mate the barrel movement to a specific load.
The BOSS makes sense in a semi-logical first blush glimpse.
Is it a practical, worthwhile improvement, or not? The rifle is a .308 BAR.
Bread and Circuses don't pay the Bills.