Bristol is (in)famous for many things - shipping, slavery, aircraft, balloons, but not many people realise that it was a Bristol man who came up with a method of making lead shot in a high quality and repeatable manner.
That man was one William Watts, of Redland. He realised that the manual method of direct molding of lead shot was both clumsy, slow and labour intensive. He realised that lead will form droplets when it falls, so he came up with the concept of the shot tower.
The process is simple. Lead is heated until molten, then poured through a large sieve, at the the top of the tower. As the liquid lead falls, it solidifies into spherical balls, of a given size – depending on the holes in the sieve. At the bottom of the tower, the lead balls fall into a water bath, from which they are collected.
Willam Watt's first shot tower, construted in 1782, in Redland. The current shot-tower, which is now part of an office development, was built as a replacement to William Watt's first tower, and was constructed from concrete.
The cache is located on the walkway on opposite bank and magnetically attached to metal girder.
Note: The cache is located to the deep water of the floating harbour, so please keep and eye on your children and dogs.
The cache is a small magnetic loc-n-loc style box and is capable of taking small items and trackable.s