"To Col J. W. Birge, St. Louis: Sir, you are hereby authorized to raise a regiment of Riflemen to be under your command and to serve for three years or during the war, unless sooner discharged in accordance with the late act of Congress.
The men of your Regiment must have produced satisfactory evidence of their ability to hit a target at two hundred yards no three shots to measure more than ten inches.
While the majority of the special uniform envisioned by Fremont did not survive long beyond his removal (except for an extraordinary sugar loaf hat decorated with three squirrel tails), Dimick fulfilled his contract, providing over 1,000 long rifles, although he had to scour regional (and even east coast) gunmakers to fulfill the enormous order for handmade weapons in the time allotted.
Immediately afterward, Halleck ordered the partially equipped and trained sharpshooters into the field in guerrilla racked central and northern Missouri.
On February 4, 1862, the sharpshooters were first shipped by railroad to St. Louis and then by steamboat to Fort Henry, where they eventually arrived on the 9th, just too late to take part in its capture.
[10] The redesignated WSS-14th MO Vols, participated in General Halleck's long advance on the Confederate rail center at Corinth, Mississippi, skirmishing ahead of the main force almost every day.
On Oct 4th, as per General Rosecrans' orders, the regiment fought as skirmishers in the timber in front of the Federal fortifications (to the right of a 3 company battalion of the 64th Illinois ["Yates' Sharpshooters"]).
[11] When the Federal center collapsed, the regiment fell back again towards the town and Battery Robinette, where they continued to fight until the Confederate breach was contained.
(The regiment was allowed to maintain the Western Sharpshooters as part of its official designation following a request by letter to Governor Yates from Colonel Burke.)
Beginning in the autumn of 1863 the men of the regiment began equipping themselves with the new 16 shot Henry Repeating Rifle, giving them a major advantage in firepower over their Confederate opponents.
The regiment left Chattanooga on May 6, and three days later opened the fighting against the Army of Tennessee, at Snake Creek Gap and the Battle of Resaca.
[14] Throughout the Atlanta Campaign, the regiment was used as the scouting and skirmishing spearhead of XVI Army Corps and participated in ten major battles.