No. 4 Rifle; Zeroing Instructions Data Inconsistency?

[Alan de Enfield]

The real game changer when shooting the 303's is the '07 pattern affixed to the No.1 MkIII's that long sticker certainly makes the rifle feel nose heavy as we know it does not attach to the barrel so poi is not affected but boy the balance sure is.

That is very strange, as the official, period, documents show a large change in POI with a No1 MkIII when using MkVII ammunition - up to 4 feet change at 600yds. !