Henry rifle
He submitted a rifle to the competition organised by the British government for a replacement for their existing Snider–Enfield service weapon. His breech action and barrel were both judged to be the best (and won the prizes). The War Office did not adopt its action, preferring that of von Martini, but did adopt its seven-grooved barrel rifling scheme. The resulting Martini-Henry rifle is named after von Martini and himself.