The 4th Iowa Cavalry was armed with Starr Revolvers, and William F. Scott, adjutant of the regiment, had a lot to say about them:
The remainder of the clothing, blankets, and horse equipments required were now issued, together with camp equipage, tents, and wagons. And to the heavy dragoon sabres were added firearms. But what arms! About four hundred men were loaded with 'Austrian' rifles, a very heavy and clumsy, though rather short, infantry gun, a muzzle-loader, with a ramrod. Half the remainder had Starr's revolver, a five-shooter, percussion-cap and paper-cartridge pistol, of a bad pattern and poorly made, while all, or nearly all, received a pair of horse-pistols, to be carried in holsters on the pommel of the saddle, the smooth-bore, single-barreled, muzzle-loader used in the Mexican War.
These rifles and revolvers never gained favor in the regiment; indeed, it is probable that they did more harm than good, because there was a general want of reliance upon them. The Starr revolver caused more fear in the regiment than it ever did among the enemy. Its shot was very uncertain, its machinery often failed to work, and it had a vicious tendency to go off at the wrong moment. The holster pistols were better thought of. They were found to be more effective than the revolvers, and far more easily managed than the rifles. Many of them were retained until the Colt's revolvers came, in 1863.
- The Story of A Cavalry Regiment, page 25