20mm Oerlikon ID

[Darren]

Hi Guys,

I know that these are 20mm Oerlikon rounds but am unsure of some of the markings on one of them, any ideas?

I am assuming that these are just practice rounds??

Headstamp: OeZ 42 BPF
Projectile Stamped: BHM or BHN LOT 8 (i cant make out if it is a M or N)?

Darren

 

[hicky1300]

I think this is either a ball or practice round.
There should be a date on the projectile as well.