The Walther Hammerli Force B1 is a bolt-action rifle that ships as a combo with two quick-change threaded barrels, one in .22 LR and one in .22 WMR. Both barrels are 16.1 inches. The stock is black synthetic and capacity is 10 rounds. 
 

Key Specifications 

• Brand: Walther 
• Model: Hammerli Force B1 
• Caliber: .22 LR / .22 WMR 
• Action: Bolt Action 
• Capacity: 10 
• Barrel Length: 16.1 in 
• Stock: Black Synthetic 
   

Detailed Features 

• Combo package with quick-change barrels in .22 LR and .22 WMR 
• Both barrels are 16.1 inches and threaded 
• Black synthetic stock 
• 10-round capacity 
• Bolt-action configuration

The Force B1 combo is a practical pick for rimfire buyers who want one rifle that covers both .22 LR and .22 WMR without purchasing a second platform. Owners who make the barrel swap regularly say the quick-change system is straightforward once familiar with the procedure.

Accuracy with quality .22 LR ammunition is consistently described as good. The threaded barrels make suppressor mounting practical on either caliber, which is a noted reason buyers chose this over a non-threaded option. The synthetic stock handles outdoor conditions without complaint.

The factory trigger receives mixed marks. It is workable for general plinking and field use, but owners who run precision rimfire rifles alongside it sometimes remark the pull is not as crisp as dedicated target platforms. Value per barrel is competitive given the combo pricing, and Walther customer support earns positive mentions when service is needed.