Interchangeable parts would best help businesses by significantly increasing the efficiency and speed of production. With each part being machine-made and identical, gunsmiths would no longer need to craft each gun from scratch, which would save time in the assembly process. This standardization would also reduce the skill level required for assembly since any identical part could fit into any gun, streamlining the workflow and potentially lowering labor costs.
Moreover, while initially, there may be increased costs for the machinery and production setup, the long-term benefits would outweigh these costs. Businesses could potentially lower overall manufacturing costs due to the faster production rates and reduced labor time, which could lead to increased profitability over time. Additionally, the ability to quickly produce and stock parts would improve order fulfillment and customer satisfaction, as customers would receive their products more reliably and efficiently. Overall, interchangeable parts would enhance productivity and reduce lead times, which are crucial elements for any business looking to thrive.