Military zeroing of the No. 4 - inconsistent data?

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HOWEVER, The Canadianicon data says using the 300 yard battle sight, MPI is 8.5" (+/- 1") above POA at 100 yards; this presumably Britishicon zeroing table says MPI is 6.0 above POA at 100 yards using the same 300 yard battle sight. The same inconsistency exists when comparing 30 yards versus 25 yards between the two, even though the close zeroing distances are not exactly the same.

According to the numbers I just ran (using a BC of .467 which is probably close?), the MPI of 8.5" @ 100yds on a 300 yard zero would create a POI at 300 yards to be 6.5" higher than POA (or effectively a 355 yard zero).

The British charts MPI of 6.0" @ 100yds on a 300 yard zero would create a POI at 300 yards that matches POA nearly perfect.

So, the question is...were the Canadians looking to use a 355 yard zero with the 300 yard sight setting, or were they purposely setting the POI at 300 yards to be higher than POA during zeroing.

The British Chart info appears to check out (at least for me), so your friend could zero using those numbers.