As a result of the incident, the US passed legislation increasing the size of the U.S. Army to allow for the establishment of the Regiment of Riflemen in 1808.
Through the combination of a leather wad and tight grooves on the inside of the barrel (rifling), this weapon was far more accurate, though slower to load.
These Riflemen were the elite of the British Army, and served at the forefront of any engagement, most often in skirmish formation, scouting out and delaying the enemy.
were organized by Colonel Hiram Berdan, a self-made millionaire who was reputed to be the best rifle marksman in the nation at that time.
The regiment was raised by MG John C. Fremont at St. Louis' Benton Barracks as the Western Theater counterpart to Berdan's sharpshooters.
They were initially armed with half-stock Plains Rifles built and procured by St. Louis custom gunmaker Horace (H.E.)
Beginning in the autumn of 1863 soldiers of the regiment began to reequip themselves with the new 16 shot, lever action Henry Repeating Rifle giving them a significant advantage in firepower over their opponents.
Over 250 of the Western Sharpshooters purchased Henrys out of their own pocket, at an average price of forty dollars (over three months pay for a Private).
Robert E. Rodes, colonel of the 5th Alabama Infantry Regiment, and later a major general, was a leader in the development of sharpshooter units.
[10] The Confederate States Army made more widespread use of sharpshooters than Federal forces, often having semi-permanent detachments at the regimental level and battalions of various size attached to larger formations.
However, the exceptional long-range accuracy of the Whitworth rifle allowed the eponymous Whitworth Sharpshooters to score several high-profile kills, including the infamous deaths of Brigadier General William Lytle at Chickamauga and Major General John Sedgwick at the Spotsylvania.
In his memoirs, Confederate soldier Louis Leon detailed his service as a sharpshooter in the Fifty-Third North Carolina Regiment during the Civil War.
As a sharpshooter, he volunteered as a skirmisher, served on picket duty, and engaged in considerable shooting practice.