I have a George Gibbs rook rifle that at some point had a barrel liner installed and is now chambered in 22LR. Original caliber is unknown as info was stamped over. It looks like it was in the thirty caliber range. Was looking through my Ellis book and noticed my rook is nearly identical to the H&H rook pictured in the back. My question is what is the relative strength of this action as another barrel in a pistol caliber would be alot of fun but I don't want to stress the action. The serial # 47375