I am a believer in the concept and practice. According to Browning any round could benefit. I have seen claims of group size reductions of 40% at 100 yards plus up to a 34% reduction in recoil. The Browning BOSS was introduced in 1995 for calibers from .22-250 up to .338 Win Mag. Google The BOSS (Browning Optimization Shooting System) and look for the vids on YouTube.

Lets say it does tighten a 1 MOA group 40%, that is better than 3/8 of an inch at 100 yards - so 1 MOA becomes almost .6 MOA and it only gets better in terms of group size as you extend the range. At 1,000 yards your Group Circle would be 6.2 inches instead of 10 inches.

For an in depth discussion of barrel vibrations (not Browning stuff) visit Varmint Als site - Links are below. And check out his other areas of interest on the Left Sidebar.

His creds include almost 30 years as a structural engineer at Lawrence Livermore National Laboratory, you know, the place where all the special weapons in the US Arsenal are designed.

I am thinking about using the Micrometer Adjustment Locknut from a BOSS to calibrate the placement of a suppressor can that will function as the BOSS for "Tuning" the harmonics from my .30-06 Krieger Barrel.

http://www.varmintal.com/atune.htm and http://www.varmintal.com/amode.htm