[Jim McDougall]

Originally Posted by adrian

My example was recovered from the wreck of the Hanover, she was a 100ft two-masted brigantine, built in 1757. On 20 November 1763 the Hanover left Lisbon, on her way to Falmouth, and on 2 December was hit by a hurricane. Of the 27 crew and just over 30 passengers it is believed that only three survived.

Its shaft is square in profile, rather than being of round bar, and ends are cylindrical, rather than spherical or semi-spherical, as is sometimes encountered.

This type of bar shot (post #4) with cylindrical heads is known as 'hammer shot' according to sources I checked.