After the Second Battle of Corinth, the regiment helped establish Camp Davies, a stockaded outpost six miles south of Corinth. In December, 1862 (after the strong intervention of Governor Yates of Illinois) the Sharpshooters were transferred to Illinois service as the 66th Illinois Volunteer Infantry (Western Sharpshooters) on November 20, 1862. (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. Over 250 of the sharpshooters spent an average of 40 dollars out of pocket (over three months pay for a Private) to arm themselves with this highly effective new weapon. The government, while it did not purchase the weapons, did provide Henry rifle cartridges for companies whose soldiers had done so.