I have Brownells tuning fork. In my opinion it is next to useless. The rods are so flexible I don't know how you can get an accurate measurement. If I recall correctly, threads in the past have discussed machinging in a spring to keep the barrel to one side and dangling the barrels from a wire or string from above. I would love to hear opinions and ideas for this unit.

I wonder if the Galazan unit is better. It looks more strongly built but at 4 times the price it seems out of reach for most.

So many guns, so little time!