when I starting finding mine - I thought they were musketballs too
then I started finding brass pieces out farther at low tide
View attachment 914278
- I posted and got responses that they were WW I
type artilliary shells - but I did not know the shells contained lead shrapnel till that diagram was recently posted
they had Harbour defenses all around the Bay and outsides of the Cape - they probably did target practice
during off season in certain areas
But then again you may have musketballs - just they look very similar to ones in my hand