I copied this from an earlier thread on this topic. Worked great for me:
This will be more help fine tuning!
Prior to my retirement, I was the Chief Firearms test Engineer at Browning Arms R&D Division for many years.
I performed all the developmental testing for the BOSS system (well over 30,000 rounds fired)
To find your sweet spot, I'd suggest the following procedure.
With the system set at mid point, fire a carefully aimed 3 shot group. Adjust the weight 1/4 turn in either direction and fire another group of 3 shots. Compare the results. If the group is smaller, (if the group opens up, go in the other direction) continue in 1/4 turn increments until you reach optimum. The groups will open up again if you adjust past the optimum.
It's important let the rifle cool between groups.
That's the procedure I followed in determining starting points for the system. All testing was with commercial ammo, in a 100 yard tunnel with VERY good optics. After a short time, no one got very excited at any groups that were not sub 1/4". I recall one group that was .0029, right, 29 thousandths of an inch, but it must be remembered this was done under optimal conditions with high quality optics.
Hope this is of some use to you. I'll be glad to answer any questions you may have.
Best regards,
Rob
Very best WinPoor
