Nosler Model 21 | .280 AI | 24″ Barrel | 40521

The Nosler Model 21 is a modern bolt-action rifle chambered in .280 Ackley Improved with a 24-inch Shilen match-grade stainless barrel. It incorporates a wire EDM-machined receiver, a nitride-coated fluted bolt, and a TriggerTech Field trigger for consistent break and feel. With a factory weight near 7.1 pounds and an overall length of 44.50″, the Model 21 is configured for field portability and precision performance. A suitable optic under $1,000 for this platform is the Vortex Viper PST Gen II 5-25×50, which balances magnification, glass clarity and tracking for long-range hunting or precision work.

Suggested applications: long-range hunting and precision target shooting.

Product Specifications

• The cartridge is .280 Ackley Improved.
• The barrel measures 24 inches and is a Shilen match-grade stainless barrel.
• The action is Bolt Action.
• The receiver is manufactured with a wire EDM machined process.
• The bolt is nitride coated and fluted.
• The trigger is a TriggerTech Field trigger.
• The rate of twist is 1:9″.
• The muzzle is threaded.
• The overall length is 44.50″.
• The weight is 7.10 lbs.
• The barrel contour is #3.
• The rifle is configured for Right Hand operation.
• The sights include an Integrated Base.
• The UPC is 054041405218.

The Model 21 combines modern manufacturing and premium components to deliver a production rifle with custom-level features. Its combination of a match-grade Shilen barrel, EDM-machined receiver and TriggerTech trigger makes it well-suited for precise shot placement on the range or in the field. Ruggedness and accuracy are priorities in this design, offering shooters a platform that bridges packable handling with long-range capability.