Puddling is when iron ore is put into a molten state without the ore actually coming in contact with the fuel (only the combustion gases).
Replicas of the Wiard Rifle are made by at least one manufacturer.
Wiard Rifles came in 6 & 12 pounders and besides not having a casabel, they had a rather peculiar carriage, unusual sights and the ability to be elevated much higher than a normal piece. Photo LoC
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