Never seen one of these in the flesh so to speak, and it makes perfect sense to mate the 6.5x55 with this action! It seems as the action is very long, almost a magnum length; that ejection port is quite substantial - what length size cartridges was it capable of?
As far as strength I don't think you have any issue there, must be right up with the Arisaka as far as that goes!
Lovely work as always Mr D, is this one actually yours or is this a customer's rifle?
Wonderful stock work to say the least & yes I certainly agree with Daryl the grip cap is a rather nice touch indeed.