“The Birth of the .351 Winchester Self-Loading – Why America Wanted a Semi-Auto in 1907”**
These notes correspond to the historical and technical claims made in Chapter 1. They provide source direction, validation, and clarification where applicable, without interrupting the narrative flow of the main text.
“The Industrial Momentum That Made the Model 1907 Inevitable”**
These notes support, clarify, or verify the historical and mechanical claims made in Chapter 2.
Nothing here repeats the chapter — it expands the factual backbone behind it.
