I reviewed several of them (4 in all) in different rifle configurations and cartridges, the first one I kept 6 months and wrung it out.
It was a 270 Browning and I dialed in groups in the .2's and .3's. None of the others did that well but the secret is minute changes where 1 direction opens the groups so you simply go the other way by the same amount.
Also tried removing the BOSS and working with the rifle bare, to see how the basic rifle performed.
The noise was the reason I sent it back and the short 20" barrel which starved the cartridge of velocity potential.
Now, after saying that, I shot goats out to a quarter mile on the flats with no apparent loss in performance in the field.
Try it first.
