Thank you for the compliment !

I did hesitate regarding the caliber , but for a boxlock rifle of 10lbs , presumed from the 20's or 30's , there is imho not much to choose between 450NE N°2 , 470NE or 475NE N°2 . I dont know if there are Belgian boxlock DR's 500NE . I saw only sidelock rifles of this caliber .