The Winchester Xpert Thumbhole Target SR is a bolt-action rimfire rifle chambered in 17 WSM with an 18-inch matte black threaded barrel. It has a gray laminated thumbhole stock with an adjustable comb and a matte black steel receiver drilled and tapped for a Picatinny-style optics base. 
 

Key Specifications 

• Brand: Winchester 
• Model: Xpert Thumbhole Target SR 
• Caliber: 17 WSM 
• Action: Bolt Action 
• Capacity: 8+1 
• Barrel Length: 18 in 
• Stock: Gray Laminate Thumbhole 
• Finish: Matte Black 
   

Detailed Features 

• The button-rifled bull barrel uses a Bentz-style chamber to support target-grade accuracy. 
• The muzzle is threaded for a suppressor or muzzle device. 
• An 8-round rotary magazine feeds the rifle and uses an ambidextrous magazine release. 
• The Rimfire M.O.A. adjustable trigger lets shooters tune pull characteristics. 
• The thumbhole stock has an adjustable comb and sling swivel studs, and the steel receiver is drilled and tapped for the included Picatinny-style base.

Owners of the Xpert Thumbhole Target SR generally like the button-rifled barrel for the accuracy it delivers in a rimfire magnum chambering, and the Bentz-style chamber gets credit for feeding smoothly. Build quality on the steel receiver and barrel is viewed as solid for the price point, typical of Winchester's rimfire target rifles.

The thumbhole stock with adjustable comb draws mixed reactions: shooters who spend time behind a scope like the consistent cheek weld it gives, while others find a laminate thumbhole stock heavier and less handy than a traditional sporter stock for carrying afield. The ambidextrous magazine release is a small but appreciated touch for left-handed shooters.

On value, 17 WSM ammunition costs more than standard rimfire rounds and is carried by fewer retailers, so owners weigh that against the flat trajectory the cartridge offers. Aftermarket support such as stocks and rails is more limited than for centerfire bolt guns, but the factory Picatinny-style base covers most scope mounting needs out of the box.