No, it's the very first year of the Mark V, 1958. It's the 32nd one ever made. Somebody had it rechambered to 270Wby from a 300 WBY with a German made barrel. The work was done by Weatherby . They kept no records of shop work in those days. It's a 1 in 12 twist ,limiting it to lighter bullets.110 TSX and 130gr. A-Frame work pretty well.