Graham Greener in his book,The Greener story
refers to hand made guns right through to 1999.However he also lists guns mostly machine made but hand finished and assembledas of 1910.
These were lower grade guns /rifles and guns by Webley and Scott.
Interestingly W.W. Greener has to say in 1881:
in military arms the advantage of the interchangeable system is apparent;but for sporting arms,where in every case individual taste has to be considered,their production must ever be fraught with formidable obstacles,and perfect as works of art they never can be.
I suggest you read the whole chapter,The use of machinery in gun making page 283 The gun and its development ninth edition.
I think the definition you seek would have meant one thing in WWs day ,another in Burrards and different again today.
GDU
