It is my understanding that BSA did adopt the American method of manufacturing (interchangeable parts) but the term is somewhat misleading. Raw parts could be made by machine but the final fitting and finish still had to be done by hand. The machining did reduce the amount of time required to begin assembly but true interchangeability was never achieved. At the time it was a point of pride for advancing industrial nations to advertise "machine made" even if this was a stretch of facts. Of course today the meaning of the term has reversed itself and is usually associated with low or indifferent quality.

John McCain is my war hero.