Need ID Help

[imaokie2000]

I can find any information on these 3 rounds.


The 30mm is 30x110mm and the driving band has "FA-E-609-64 3011 PROOF" Stamped on it. There is nothing on the HS except where someone wrote "268". I think it is a Frankford Arsenal Experimental round from 1964.



The 15mm is 15x104mm and the HS reads: K40 15mm WZ. I think it is a Kynoch Factories round from 1940. Not sure what "WZ" stands for or anything about the round.



The 10mm is 10x70mm and the HS reads: "L1A4 RG 71 JB" I think it is from the Royal Ordnance Factory from 1971. Someone told me it could be an Ejection Seat Cartridge. I know nothing about this round either.




Any help you could give would be great!

 

[smle2009]

Ref 15mm BESA
W = Armour Piercing.
Z = Nitrocellulose

Cheers
Tony

 

[spotter]

The L1A4 is nothing to do with ejector seats its a vent tube see here for more info and drawings http://www.bocn.co.uk/vbforum/threads/22873-L1A4-Vent-tube?highlight=L1A4%2A

 

[bacarnal]

I'm still at a lose. From a search, I was able to come up with "Venturi Tube Igniter", so does this mean it is the igniter for a propellent charge in the Chieftain? If not, What does it do? Thanks, Bruce.

 

[spotter]

basically it works the same as a primer in a cartridge but is used with caseless ammunition as in the chieftain tank etc,,first the projectile is loaded..then the required charge bags,,the breech is then closed and then the vent tube is fitted into the guns breech

The attached image shows the breech of a 120mm chieftain tank..part no 10 shows the vent tube loader

 

[imaokie2000]

Now, that makes since! Thanks Guys!