Sights were changed the calibrating type, initially to the No 9 carrier for the No 7 dial sight. This carrier had muzzle velocity corrector scale and an elevating arc below the sight mount, the arc was fitted with a choice of range scales depending on the ammunition being used. Subsequently, the No 14 carrier was issued, this was a Probert pattern calibrating sight, the range scale plate being double sided, 8 CRH shell full charge (13,700 yards) and reduced charge Mk IXC (8,300 yards) on one side. On the other side for the 56 lb shell (15,200 yards).