So if I'm reading and seeing this correctly,,,,,,,,, You shoot with the barrel resting in the fork/ring ????
Doesn't it play hell with your accuracy by impeding the natural barrel movement from firing ?
Many years back I made one very similar in design except it was steel tube much like the bipod legs of today.
I used it with a heavy barreled .308 and couldn't hit the broad side of a barn.
Soon as I realized what was happening I put it on the fore-end timber which allowed the barrel and the free floating to do what it did naturally,,
and the normal accuracy came back immediately.
I do not fear death itself... Only its inopportune timing!
I've come to realize that,,,,, the two most loving, loyal, and trustworthy females in my entire life were both canines.