I have read about and observed the use of sheepskin to cover a budge barrel as protection from the weather. It would help to shed water and dissipate the effects of sunshine. I would imagine it would also serve quite well as a vent cover to protect a readied piece from wind and rain.
The 18th c. stores for twenty-four light three pounders, included 6 dozen sheepskins and for two cannon, six sheepskins. I always assumed these were only meant to be used to sponge the piece. Maybe used as budge barrel protection too.
However, while viewing, "The Last of the Mohicans" (1992 version), I saw full sheepskins being placed over the vent while loading the piece, as one would use a thumb stall.
Has anyone ever seen the like of that before anywhere?
Having known a former Williamsburg gunsmith, I asked him about the use of sheepskins over the barrels of cannon and he speculated that they might have also been used wetted to cool the piece between rounds.
Any comments?
I carry several for my 15th c. breechblock falcon. They make darn good cushions during leasure moments too.