Cannonball ID?

[rahkonen123]

Looking to confirm if this is a cannonball, found in rural massachusetts.

 

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[The Rebel]

Looks like there's a square impression in it, which would rule out a cannon ball.

 

[rahkonen123]

Looks like there's a square impression in it, which would rule out a cannon ball.

I started to clean it up a bit and that area appears to be damage/heavy corrosion

 

[rahkonen123]

Looks like there's a square impression in it, which would rule out a cannon ball.

 

[Gene Mean]

Give a precise weight and diameter and you will get an answer. You never know.

 

[rahkonen123]

Give a precise weight and diameter and you will get an answer. You never know.

What would you recommend to gain better data ?