Looks like a bullet, any idea of how old?

[Nathanonline]

Here's a photo, I found it in the ocean in a spot that old coins have been showing up, just curious how old this may be:

 

[unclemac]

is it solid?

 

[Marylanddetctr]

Looks like a civil war 3 ring Minnie ball to me

 

[smokeythecat]

I think Civil War period also. Salt water turns them black.

 

[Ant]

It could be a modern smoke pole ball too, need to see the base and mic the circumference.

 

[Nathanonline]

Thanks everyone. I have been hunting a site that typically produces things between 1870's and 1920's, but it would be really cool if it were older!

 

[Patriot Relics]

Civil War 3 ringer- nice dig