Jim, I am aware that such close tolerances were possible, The Romans could teach us a thing or two about accurate work and fitting. I have built a couple of rifles, I have one on the bench and a matchlock lock in the forge that is coming together. There will be an English doglock after these are finished. As for handling the antiques, I have access to but a few and we can't afford to move closer to the source like Paris, or Graz so I will have to use the best info that I have. Tools aren't a problem, I am a full time wooden yacht carpenter and have too much money tied up in books, carpentry tools and my blacksmith shop. What I can't afford to buy, I can make.
I am just waiting for my !#@%$&?!!! broken heel to heal so that I can finally move my carpentry bench into the blacksmith shop and mount my new post vice.
Anyhow, I appreciate good work but I am enamored by the early work and work that was affordable by the common man. A buddy of mine, whose family was nearly snuffed out in the Tuscarora War of 1712 wants to Re enact the Early West, just west of the East Coast, maybe 2 miles inland. He has a matchlock and I want one too. there will be tight fits in as many places as necessary and file marks and fire scale in many more places, much like a Mark 2 STEN. and just like the English made them in 1630. The clothes are kinda weird but we will get by.
Danny