Have the mass production of interchangeable gun parts possible by the first decade of the 19th century.
The best POD I can think of so far is having Thomas Jefferson convince Honoré Blanc to move to the USA, circa 1785, to improve his methods. Then folks like Simon North and Eli Whitney, still young, tutor under him and do what they did in OTL sooner and better.
The best POD I can think of so far is having Thomas Jefferson convince Honoré Blanc to move to the USA, circa 1785, to improve his methods. Then folks like Simon North and Eli Whitney, still young, tutor under him and do what they did in OTL sooner and better.