David Penn is former Keeper of Exhibits & Firearms at the Imperial War Museum and is now a consultant.
He is President of the Arms & Armour Society, a Vice President of the Historical Breechloading Smallarms Association, the Muzzle Loaders Association, the British Association for Shooting & Conservation and Secretary of the British Shooting Sports Council.
His interest is in 19th and early 20th century firearms.
Did you know?
World's biggest bore!
The largest bore gun ever built fired a cast iron ball weighing around 1 tonne, measured 3 ft in diameter, contained 215kg of gunpowder, and fired to a range of 2.4 km (1.5 miles). It is on display at Fort Nelson.
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