Actually, it IS the correct ramrod for the "M1864" Rifle-Musket (M1863 Type II).
The specifications called for the ramrod to be replaced so as to conform more closely to the "Enfield" arms.
On February 3, 1863, Dyer recommended:
"The ramrod is increased two hundreths of an inch in diameter over the present rod, and the swell is omitted. This change wil reduce somewhat the cost and at the same time protect the thread of the screw from being marred by the rod spring."
Although it appears they did not go all the way as the "The Manual of the Model 1863 Musket" said:
"RAMROD- The 'swell ' is omitted and the body made larger, with a ball-screw cut on the small end, and a brass cap to protect it from injury."
("It" being the implement tool threads at the lower end.)
I may be wrong, but to my knowledge, no one makes a correct repro "M1864" ramrod for the repro "M1864's." So, folks are not used to seeing them.
In gleichem Schritt und Tritt, Curt Schmidt
Not a real Civil War reenactor, I only portray one on boards and fora.
I do not portray a Civil War soldier, I merely interpret one.