Hi Michael,
I look forward to examining the detail on variations of screws used by armourers in those times. Its funny, it reminds me a lot of Sherlock Holmes describing his treatise on burned tobacco, which he seemed almost obsessed with. Watson then made his comment on minutiae!! which has been with me ever since
Good information on the recoil on these as well. I have not handled many firearms, so it is good to know that there was indeed recoil...ouch!
Thanks very much Michael.
All the best,
Jim