Originally Posted by lagopus
I've been at the Proof House in Birmingham when Provisional Proof was taking place. If you have access to Greener's 'Gun & its Development' you will see the illustration and there is no change in how it is done other than the powder trail is ignited from an old car battery rather than a percussion gun lock and a piece of string running through a small hole in the wall. A series of bangs as the powder packed tubes go off in rapid succession and then the iron louvres are opened to let the smoke out. Once the 'all clear' goes all the barrel tubes are dug out of the sand beds. All very 'low tech' but it works! Lagopus.....

This sounds pretty interesting and not at all what I would have expected. "Powder trail"? Buried in sand beds? Nope, not what I thought at all. Do you have any pictures of this? It sounds as if this provisional testing might be with black powder. I would love to hear more about it.

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BrentD, (Professor - just for Stan)

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