Unknown Cartridges - WW2

[Jimbo]

These cartridges were found close to an RAF base - along the beach.
I assume that there must have been a training range on this beach.

The cartridge on the left is a .50 cal.
I cannot seem to find what the other 2 cartidges are.
The headstamps are K38 F I Z & K40 F I Z.

Does anyone know what these are? And from what aircraft they would have been used in?

Thanks

Jimbo

[Stinkpotpete]

I'm guessing it was made by Kynoch, and was used by the RN as an anti-aircraft round. Don't quote me on that, I'll let someone who knows British ordnance a little better than I make it official

[zwerge]

It is the 12.7x80,or .50 Vickers cartridge made by Kynoch. The markings on it indicate it was a semi-armour piercing loading.

[TonyE]

Just to confirm the above post, the .5 Vickers was mainly used in WW2 by the Royal Navy as an anti-aircraft round. It also saw limited use pre- and early war as a secondary AFV armament. It was not used in aircraft.

The RN found that the semi armour-piercing F Mark Iz was as effective as the full armour-piercing W Mark Iz but much cheaper to manufacture, so it became the normal load for shipboard guns together with the Incendiary B Mark Iz.

Here is what your cases originally looked like.
Left to right,
Drill D Mark I
Drill D Mark I*
Semi AP F Mark Iz
AP W Mark Iz

Regards
TonyE