Another version of the stone’s origins:
There is a farm near Wrington called Hailstones Farm, but some folk say it should really be Hurlerstone Farm, on account of the Devil picking up a great rock lying there and throwing it right over the Mendips to hit Cranmore Church. Of course, he missed, but it was a tidy throw even for “the Old Boy”.
Some say it was a giant dropped it or made a bad shot of it. Anyhow, the rock lies on the edge of a cliff in the woods and they call them Hurdlestone Woods. And there is a Giant’s Grave there too.
From Ruth L. Tongue’s 1965 ‘Somerset Folklore’. She heard it in Frome and Cranmore in 1945.