Is this a cannon ball?

[Deno]

A guy I work with found this in his barn.

It looks like a cannon ball to me.

 

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[OutBack Duo]

Looks like one to me also, try to get a diameter and weight and it might be easier to determine.

 

[DirtDiggerDaveinMD]

My guess is it's a shot put. I doubt Gill Athletics made cannon balls.