I've seen some speculation as to where Custer's rifled ended up. I found this interesting. It may not be Custer's rifle and Touch the Clouds wasn't at the battle but some others of his tribe were allied with Sitting Bull and it's possible he came into possession of Custer's rifle between the time of the battle and April 1877 when he turned the rifle over to Crook. It would be interesting to know what Crook did with the rifle. It's interesting the hand gun was an 1873 Colt Cavalry revolver which I believe is what the 7th cavalry used.
During the Great Sioux War of 1876-1877, Touch The Clouds took his band of Minneconjou Teton followers to the Spotted Tail Agency in northwestern Nebraska. When they arrived on April 14, 1877, the chief rode forward and said, “I lay down this gun, as a token of submission to Gen. Crook, to whom I wish to surrender.”
The ferociously strong and brave warrior carried an 1873 Colt Cavalry revolver, as well as a Remington Rolling Block rifle, at the time of his surrender.
General of the Army (Medicine Man/Chief))
Ladies & Gentlemen. Please read the article, Revolver... Revolvers: Which was Cooke's Real Revolver? By George Kush. Greasy Grass. The Journal of the Custer Battlefield Historical & Museum Association, Volume 31, May 2015. And get the true facts regarding Lt. Wm. W. Cooke's personal arms & disregard all the silly auction house "junk history" about a weapon that as a child I played "Cowboys & Indians" with.
I believe the above article can be accessed online from the CBH&MA.
On the 25th day of June 1876, Lieutenant William W. Cooke rode into action armed with Smith & Wesson "American" Model revolver, cailbre .44. One of a pair of Smith & Wesson revolvers belonging to the lieutenant and it was subsequently lost to the enemy during the ensuing combat. A few weeks later, on July 29th, the companion Smith & Wesson revolver saw active service in a skirmish with a war party of hostile Sioux at the mouth of Powder River, in the hands of John Cooke, the late lieutenant's younger brother, who was credited with helping take a "first scalp" for Custer. In 1917, valued at $15, the surviving weapon was sold to settle debts as part of an estate sale.
Lieutenant Cooke's Remington No. 1 sporting rifle, calibre .50/70 remained with the pack-train during the fight of June 25th and was later sold to a civilian scout serving with General Terry's command on the Yellowstone River.