The Savage Arms B17 Timberlite Thumbhole is a bolt-action rifle chambered in .17 HMR. It uses a carbon fiber-wrapped barrel and an ambidextrous thumbhole stock in grey with a black spiderweb pattern. 
 

Key Specifications 

• Model: B17 Timberlite Thumbhole 
• Caliber: .17 HMR 
• Action: Bolt Action 
• Capacity: 10+1 rounds (10-round rotary magazine) 
• Barrel Length: 18 inches 
• Overall Length: 36 inches 
• Weight: 5.30 lbs 
• Stock Finish: Grey with Black Spiderweb pattern 
• Trigger System: User-adjustable AccuTrigger (2.5 to 6 lbs) 
• Rate of Twist: 1:9" 
• Sights: None (optic ready with 20 MOA Picatinny rail) 
   

Detailed Features 

The carbon fiber-wrapped barrel keeps the weight at 5.30 lbs -- light for a rifle and meaningful for all-day carry. The AccuTrigger is field-adjustable between 2.5 and 6 lbs without tools, which is useful for dialing in your break for a specific use case. The ambidextrous thumbhole stock works naturally for both right- and left-handed shooters without modification. No iron sights are included; the rifle ships with a 20 MOA Picatinny rail for optics mounting. The 10-round rotary magazine keeps rounds feeding reliably with the .17 HMR cartridge's pointed projectiles. 
 
.17 HMR has a flat trajectory and shoots at high velocity for a rimfire, which is why it's well-suited to small game and varmints at distances up to around 150 yards.

Most of the positive feedback on the B17 Timberlite focuses on accuracy. Owners report tight groups at .17 HMR distances, and the flat trajectory of the cartridge makes it practical for varmint hunting without much holdover. The thumbhole stock gets consistent mention for grip comfort and natural hand position, and the grey/spiderweb pattern is generally liked as a departure from standard black.

The AccuTrigger is one of Savage's better features and owners here note it: the ability to adjust pull weight without sending the rifle out gives you a meaningful tuning option for a rimfire.

At 5.30 lbs the rifle is light, which owners appreciate for field carry. A few note that the lighter weight does translate to more felt recoil on .17 HMR -- not a lot, but perceptible compared to a heavier platform.

Trigger pull criticism exists alongside the praise -- some owners find even the lowest AccuTrigger setting feels heavier or less crisp than they wanted, though this appears to be a minority view. Overall the B17 Timberlite is seen as a practical, well-specified small game and varmint rifle with no significant design flaws.