We have chatted about your ancestor's 7th Illinois Cavalry serving in the Memphis area and fighting at the battles of Collierville. When did they get the Smith rifles? Could they have had them at the October/November 1863 battles of Collierville?
Recently, a new owner of an industrial site found a Colt Rifle bullet on his land. I was wondering if I know someone who may have found a bullet from a Smith rifle.
I don't know when they were issued Smith Carbines, and as I said, I found were only a few companies of the regiment had them.
Back in the pre-internet days of the 1980's, when I started shooting in the North-South Skirmish Association, I wanted to shoot a carbine. I don't know where I found that the 7th Il. Cavalry were issued Smiths, but if you google "what units were issued Smith Carbines." the 7th Il. Cav. is listed, so I assumed the whole regiment were issued the Smith's. It was years later that I came across a book that listed only company's x, y, & z were issued Smith's and the balance of the regiments received Sharps's carbines. I have a copy of this book in my library, but I can't locate it at present. If you saw my library, you'd understand why I can't locate it.
Over the years, since my gg grandfather was a member if the 7th, I've tried to collect anything written about the unit. The 7th Il. Cav. was one of the regiments that took part in Grierson's Raid, I have D. Brown's book "Grierson's Raid" and have read it many times, but I can't recall If there was any mention of the arms the 7th had at that time. I also have Timithy B. Smith's book "The Real Horse Soldiers" which looks to be a much more informative book on the subject of Grierson and the raid, but I haven't read it yet, but looking through the glossary I don't find anything mentioning armaments, although I'm sure something will be said about that subject buried in the book. Sgt. Richard Surby wrote a first-person account of the raid in his book "Grierson Raids" but I've only read part of the book as I find the writing style of the 19th century rather tedious to read. Lastly, Tom Lalicki's "Grierson's Raid" did mention a bit of the armaments of the 2nd Iowa Cavalry. The 2nd took part in the early stages of the raid, but Grierson had them return to LaGrange in an attempt to mask the real nature of the raid. One of the reasons Grierson sent the 2nd IO. back was that they were the best-armed regiment on the raid with a multitude of small arms, almost every type of carbine the army had, which among which was the Colt Revolving Rifle.
Perhaps the Colt Rifle bullet that you referred to is from one of the Colt revolving Rifles of the 2nd Iowa Cavalry?