Case for 20mm projectile

Any one know what age category 20x110 case I need for projectile # 5?

Thanks Steve

I can see some info stamped into the side of the projectile, is there no date in there anywhere?

gravelbelly

Projectile #5 would need a 20 x 110RB Oerlikon case. The date of case would depend on the projectile date (if the projectile is stamped with the date).

Mk 3-54J
LOT 1341
MAT

It is likely that this is a WW2 era projectile. A WW2 US made Oerlikon case should be easy to find in the USA. They are very common here in the UK.

Thanks everyone for the help!

Steve