Huge musket ball?

[Mineo26]

I found this huge ball today in a revolutionary war site but i dont know if its actually a musket ball? compared to a regular 69. cal, the ball is massive and i cant picture what kind of gun this ball would shoot out of? Any opinions would be great. Thanks guys

 

[deanv63]

Nice find!

 

[trainermick]

Looks like a .705 brunswick banded musketball to me.

 

[ANTIQUARIAN]

Looks like Grapeshot to me.