That's pretty straightforward. It seems to me that these values would make it much easier to set up a try-gun for an initial fitting.
Are you refering to a handling fitting? If so, one of my "short list" projects is a handling fitting try gun (one with adjustable weight, balance, and MOI's.
Another point: Thomas's apparatus measured MOI with the gun inverted on the pendulum; the rotation was around the CG in the horizontal plane. Is that value valid for all rotations, including those in the vertical plane? After all, recoil is primarily in the vertical plane.
The MOI through the CG, butt, or any other point along the gun's long length is constant. That is to say MOI is the same for side-to-side swing and up-and-down swing.
DDA
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