Production of the Model 10 began in 1911. icollector.com Remington beat Winchester to the internal hammer pump shotgun with the introduction on the Model 10 in 1908 (production began in 1910). John ...

John D. Pederson had designed the Remington Model 10 slide-action, bottom-ejecting shotgun—he actually designed it in 1908, but it wasn’t brought to market until 1909—and it sold reasonably ...