Need help identifying a large bore case

[US-Subs]

Bought this with a group of other items. Cannot find anything close in Hawkinson, but that may be me. Closest I came is a Swedish case that is supposed to be steel and plastic, not my item. My measurements are 154mm ID at the mouth, 203mm at the rim, and approx 830mm long. Two piece case with a slight taper. Primer hole is plugged, two small sets of markings. Any help is appreciated.

 

[TimG]

Looks like an Elswick - EOC monogram.

TimG

 

[glevum]

EOC is Elswick Ordnance Company

They were based in Newcastle upon Tyne and became part of Vickers in 1927.

Tim beat me to it.

 

[glevum]

There was a QF 6" Naval Gun made at EOC, but I do not have the case dimensions.

I think the early cases were longer than the later ones.

 

[US-Subs]

So the EOC would date it pre-27 then?

 

[TimG]

The case is dated 1/00 - Jan 1900.

TimG

 

[2pounder]

the original British 6'' was a black powder case but then cut down to take a cordite charge. they both used the protruding primer hence yours has a small hole filled with something. the cases both had 3 tags for a closing disc. I do not have a case length for the old long case but the rim would be 198.5mm (nominal). I think you have the very rare 6'' long case there but that is only my guess.

 

[US-Subs]

Thanks everyone.