Q on Brit/Canada use of M1917's

[Alfred]

I only saw P. 14 convertet in 7,92 in Belgium. They were made in the 30s.

Actions from these were for sale a few years back. They had been refitted with M1917 bolts for the rimless 7.92 and I suspect the barrels had been rebored from .303.

The Red Chinese converted M1917 rifles captured from the Nationalist forces to 8mm because they had facilities to mass produce 8mm ammo.

Some Scandinavian countries used an 8mm long range Browning MG that fired a longer cased 8mm cartridge.
Usually the bullet was seated deeply to maintain the same OAL as the .30/96 but there may have been some with greater OAL.
MG crews were often armed with Mauser rifles converted to use the special MG cartridge.