The Cimarron 1866 Yellowboy is a lever-action rifle chambered in .44/40 with a 19-inch barrel and a walnut stock. It has a blue/black finish and a 10-round capacity. 
 

Key Specifications 

• Brand: Cimarron 
• Model: 1866 Yellowboy 
• Caliber: .44/40 
• Action: Lever Action 
• Capacity: 10 rounds 
• Barrel Length: 19 inches 
• Color/Finish: Blue/Black 
   

Detailed Features 

• 19-inch barrel in a carbine-length configuration 
• Walnut stock and wood furniture 
• Blue/black metal finish 
• 10-round capacity 
• Lever-action platform chambered in .44/40

Owners of the Cimarron 1866 Yellowboy in .44/40 tend to value it as a reproduction of a classic lever-action carbine, and most feedback centers on the walnut stock quality and the blue/black finish holding up to regular use. The 19-inch barrel makes it manageable to handle compared to full-length rifle variants.

In practical use, the .44/40 chambering and 10-round capacity draw praise from cowboy action shooters and collectors alike. Some owners note the action can be stiff out of the box and benefits from a break-in period, while others find the smoothness acceptable from the start.

For value, Cimarron's reproduction quality is generally considered a notch above basic imports. Opinions split on whether the price premium over entry-level lever guns is justified, though most who buy one for competition or display come away satisfied with the fit and finish of the wood and metal.