I don't know about the accuracy of the pistol- firearms are not my specialty- but I have a friend who has a Civil War era musket that he uses for hunting. One thing that we as reenactors some times forget is that "accuracy" is in itself a daunting thing. These were, to them, clothes, while to us, they are costume. In order to illustrate this fact and remind myself of it, I bought a 1600's era english doublet that I frequently wear with my ancient kilt. Why? Because it's warm and stylish. We have to remember that what the Scots wore were not uniform and regimented. They, like us, wore what they had on hand. 200 years from now, when there is a Metalheads of the Year 200 Reenactment Society, they will probably argue over what was most appropriate as footwear- Doc Martin's or Keds, or what have you. The truth is, it's ALL correct. I wear a kilt with my Slayer t shirts! So when considering the accuracy of the outfitting in any painting or reenactment situation, this is something we need to not loose sight of.

Just my own personal philosophy for whatever it's worth!