Guess it belongs to the world of weapon?

[NadiG]

Do not think it is a cartridge, am I right?

 

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[NadiG]

Here I come with some measuring:
4,5 cm long, 1,2 in diameters

 

[Charlie P. (NY)]

You are correct in not thinking it is a cartridge. Appears to be cast and snapped of a larger . . . something(?).

 

[bradyboy]

blown fuse?
its a blown somthing, from combustion inside out
brady

 

[ANTIQUARIAN]

What part of the world did you find this piece in Nadi?
Is it brass, it looks to have iron encrusted to it?

Dave

 

[Smithbrown]

Perhaps the tube to hold a ramrod in place?

 

[NadiG]

It is not magnetic, so I think it is all brass. I have found it in Denmark where I live.

 

[Bruce R]

A type of cannon fuse ?