Hammerli 850 Air Magnum CO2 Air Rifle Review

Disclosure: This post contains affiliate links. If you purchase through our links, we may earn a commission at no extra cost to you. We only recommend products we’ve researched and believe are worth your money.

The Hammerli 850 Air Magnum is a CO2-powered, bolt-action air rifle with an 8-shot rotary magazine. It’s built to a higher standard than most CO2 rifles in its class — with a genuine wood stock, match-quality sights, and consistent velocity that makes it popular with target shooters who want something more refined than typical backyard plinking rifles.

[Check Current Price on Amazon →](https://www.amazon.com/s?k=Hammerli+850+Air+Magnum+CO2+air+rifle&tag=airrifles8-20)

Overview

The Hammerli 850 uses two 12g CO2 cartridges to deliver 88 shots per fill — significantly more than single-cartridge rifles. The bolt-action mechanism distributes CO2 efficiently, resulting in shot-to-shot consistency that rivals more expensive platforms. It’s available in both .177 and .22 caliber, making it versatile for target shooting or light pest control.

Specifications

Caliber: .177 or .22

Ammunition: Pellets

Action: Bolt-action, repeater

Power source: CO2 (2x 12g cartridges)

Muzzle velocity: Up to 760 fps (.177)

Magazine: 8-round rotary

Shot count: ~88 shots per CO2 fill

Stock: Genuine hardwood

Sights: Fiber optic front, adjustable rear

Key Features

Dual CO2 cartridge system: Two 12g cartridges give you ~88 shots before reloading. That’s more than double most single-cartridge CO2 rifles — fewer interruptions during a shooting session.

8-round rotary magazine: Smooth, reliable feeding. Quick to swap in a fresh clip when it runs out.

Genuine hardwood stock: Stands out from the crowd of synthetic stocks. Well-balanced, comfortable, and looks the part. Ambidextrous design works for left and right-handed shooters.

Fiber optic sights: Easy to acquire quickly. The adjustable rear sight gives you windage and elevation control without needing a scope, though a scope rail is also included.

Consistent velocity: CO2 rifles can be sensitive to temperature, but the dual-cartridge system provides more stable pressure than single-cartridge designs. Shots stay consistent through most of the CO2 charge.

Pros

88 shots per fill — excellent shot count for a CO2 rifle

Genuine hardwood stock at this price is rare and appreciated

Very consistent shot-to-shot velocity

8-round magazine speeds up target sessions

Available in both .177 and .22

Match-quality fiber optic sights included

Cons

CO2 performance drops in cold weather (below 50°F)

760 fps is moderate — not ideal for long-range or hunting larger pests

Heavier than most CO2 rifles due to wood stock

Higher price point than comparable CO2 rifles

Verdict

The Hammerli 850 Air Magnum is a premium CO2 rifle that delivers where it counts: consistency, build quality, and shooting experience. If you’re serious about CO2-powered target shooting and want a rifle that feels and performs above its category, the 850 is the benchmark. The wood stock, dual-cartridge efficiency, and match sights make it a notch above typical CO2 options.

[Check Current Price on Amazon →](https://www.amazon.com/s?k=Hammerli+850+Air+Magnum+CO2+air+rifle&tag=airrifles8-20)