✅ SOLVED Is it old or modern?

[BFR]

I dug this musket ball at a property that dates back to the early 1800s. And I know nothing about musket balls.





Thanks
BFR

 

[Andy0820]

Well now that I think about it I would like to know if those are regulation calipers, I guess it could be that the size of the ball would tell you alot about the date as well, so I'm a newbie anyways, nice find!