The Best Magnum Rimfire Rifles And Ammo For Squirrel Hunting 2026

1

Umarex Ruger Blackhawk .177 Caliber Pellet Gun Air Rifle with

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• ARS Mark

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  9.2
• Brand
  Umarex

Key specs2

Optic Inclusion

4x32mm scope included

Action and Caliber

Features a single-shot break-barrel action chambered in .177 caliber, requiring manual cocking for each shot.

Pros & cons32

Pros

• Included 4x32mm scope provides dedicated magnification for aiming at canopy targets
• Chambered in .177 caliber for high-velocity pellet placement on small game
• Spring-piston break-barrel platform requires no external pumps or air tanks

Cons

• Single-shot break-barrel design requires manual reloading between every shot
• Factory listing does not state muzzle velocity or sound moderation specifications

2

Gamo 6110068754 Swarm Whisper Air Rifle, .177 Caliber,Black

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  9.0
• Brand
  Gamo

Key specs2

Repeating Mechanism

Uses the IGT 10X Quick Shot system for fast follow-up shots without manual single-pellet loading.

Muzzle Velocity Benchmark

Up to 1300 FPS

Pros & cons42

Pros

• IGT 10X Quick Shot mechanism allows repeating fire without handling loose pellets
• Whisper noise dampening helps suppress muzzle report to avoid spooking game
• Lightweight 5.43-pound build reduces arm fatigue during upward canopy aiming
• Delivers up to 1300 FPS muzzle velocity with light alloy pellets

Cons

• Standard trigger lacks independent first and second stage adjustments
• High factory velocity of 1300 FPS can cause pellet instability with lightweight ammo

3

Benjamin 392S .22-Caliber Bolt Action Variable Pump Air Rifle, Black

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  8.6
• Brand
  Benjamin

Key specs2

Pumping Versatility

Variable pump pneumatic power lets the shooter adjust velocity from 500 to 800 FPS based on pump count.

Sight Setup

• Fully adjustable rear sight
• Cross bolt safety mechanism
• Rifled barrel for .22 pellets

Pros & cons42

Pros

• Variable pump system allows adjustable velocity between 500 and 800 FPS
• Larger .22 caliber delivers solid energy transfer without explosive impact on meat
• All-weather synthetic Monte Carlo stock stands up to wet timber conditions
• Fully adjustable rear open sight allows shooting without relying on glass optics

Cons

• Manual pumping between shots requires extra physical effort and movement
• Scope and mounting hardware are not included and must be purchased separately

4

Gamo 611006875554 Swarm Whisper Air Rifle, .22 Caliber,Black

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  9.2
• Brand
  Gamo

Key specs2

Cold Weather Operation

IGT gas piston replaces metal coil springs, providing smoother cocking and consistent operation in cold temperatures.

Magazine System

10-shot auto-loading rotary magazine

Pros & cons42

Pros

• 10-shot rotary magazine automatically indexes pellets each time the barrel breaks
• Inert Gas Technology piston minimizes vibration and operates reliably in cold weather
• Integrated Whisper sound suppressor moderates muzzle blast during timber hunts
• Includes a shockproof 4x32 scope with mounts and a recoil-absorbing rubber butt pad

Cons

• Overall length of 48 inches requires deliberate maneuvering through dense brush
• Scope mounts attach to an 11mm dovetail rail rather than a Picatinny system

5

SIG Sauer MCX .177 Cal CO2 Powered Advanced Air Rifle

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  8.4
• Brand
  Sig Sauer

Key specs2

Power Source Limitation

CO2 propulsion offers rapid firing, but velocity drops in cold outdoor air and during rapid shot strings.

Included Gear Bundle

• 1-4x24 variable riflescope
• Two 90g CO2 cylinders
• 500-count .177 lead pellets
• Tactical front grip

Pros & cons42

Pros

• High-capacity 30-round magazine allows continuous shooting without frequent reloading
• Bundled with two 90-gram CO2 tanks, 500 lead pellets, and a 1-4x24 variable scope
• Full-length Picatinny rail ensures secure optics mounting without slipping
• 18-inch rifled steel barrel provides stable trajectory for .177 lead pellets

Cons

• CO2 propulsion loses velocity and shot consistency in cold outdoor hunting weather
• Requires continuous purchasing of proprietary 90-gram CO2 air cylinders

6

Gamo Whisper Silent Cat Air Rifle

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  9.2
• Brand
  Gamo

Key specs2

Trigger Adjustment

Features a SAT two-stage adjustable trigger that lets the shooter tune trigger travel for cleaner shot releases.

Iron Sight Configuration

Fiber optic front and fully adjustable rear

Pros & cons42

Pros

• Two-stage adjustable Smooth Action Trigger helps achieve a predictable shot release
• Dual sighting options include fiber-optic iron sights and an included 4x32 scope
• Reaches up to 1000 FPS with lead pellets for flat trajectory on canopy targets
• Integrated Whisper sound moderating barrel cuts down audible discharge noise

Cons

• Spring piston creates bi-directional recoil that requires periodic check of ring torque
• Long 49-inch profile can feel cumbersome when pointing steeply into high timber

7

Umarex Hammer .50 Caliber PCP Pellet Gun Air Rifle

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  9.0
• Brand
  Umarex

Key specs2

Target Suitability

Chambered in .50 caliber for big bore game, making it far too destructive for preserving squirrel meat.

Air Reservoir Specs

• 4500 PSI maximum fill pressure
• 24 cubic inch carbon fiber tank
• 4 regulated shots per fill

Pros & cons43

Pros

• Regulated PCP system delivers 4 full-power shots per fill at up to 1130 FPS
• Integrated Picatinny rail and M-LOK slots support heavy-duty hunting accessories
• Light 2-pound straight-pull bolt action allows rapid and smooth chambering
• Dual safeties include a trigger block and a magazine lock-out mechanism

Cons

• Massive .50 caliber power destroys small game completely, leaving no usable meat
• Requires a specialized 4500 PSI external air source to fill the carbon fiber tank
• Delivers only four full-power regulated shots before requiring an air refill

8

Ruger Targis Hunter Max Pellet Gun Air Rifle with Scope,

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  9.0
• Brand
  Umarex

Key specs2

Optic Stabilization

Integral Nucleus Rail Platform is specifically engineered to damp vibration and prevent the 3-9x32mm scope from losing zero.

Sound Suppression System

5-chamber permanent SilencAir dampener

Pros & cons52

Pros

• Nucleus Rail Platform secures the optic against gas-piston recoil to hold zero
• Included 3-9x32mm adjustable objective scope allows parallax focus at close canopy range
• Five-chamber SilencAir sound dampener quiets downrange report to avoid spooking game
• TNT Turbo Nitrogen Technology gas piston delivers consistent and smooth cocking
• Checkered rubber grip inserts and included nylon sling make timber carry comfortable

Cons

• Single-shot break barrel requires loading pellets individually for every attempt
• Product specifications do not list the factory maximum velocity rating

9

Benjamin Armada BTAP17SX PCP-Powered Multi-Shot Bolt Action .177- Caliber Pellet

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  8.8
• Brand
  Benjamin

Key specs2

Magnification Capability

Equipped with a 4-16x50mm multi-coated scope, allowing fine crosshair placement on small vitals at distance.

Operating Weight

12.3 pounds kit weight

Pros & cons42

Pros

• Multi-coated 4-16x50mm scope provides high magnification for surgical shot placement
• Recoilless PCP powerplant eliminates spring vibration to keep scope crosshairs zeroed
• Ten-round rotary magazine with reversible bolt supports right- and left-handed shooting
• Shrouded barrel moderates muzzle report and includes an on-board air pressure gauge

Cons

• Heavy 12.3-pound total weight causes rapid arm fatigue during elevated canopy aiming
• Requires dedicated high-pressure charging equipment like a hand pump or compressor

10

Benjamin BPBD4S Bulldog .457-Caliber Pellet PCP-Powered Single-Shot Bolt Action Hunting

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  9.0
• Brand
  Benjamin

Key specs2

Chassis Configuration

A 36-inch bullpup layout keeps the rifle compact for navigating thick brush, though big-bore energy is excessive for small game.

Shot Capacity Per Fill

Up to 3 effective shots at 3000 PSI

Pros & cons42

Pros

• Compact 36-inch bullpup layout balances well and maneuvers easily in tight timber
• Baffle-less soundtrap shroud moderates big-bore discharge noise downrange
• On-board pressure gauge allows quick monitoring of the 3000 PSI reservoir
• Rifled steel barrel features an M18 threaded muzzle adapter for accessories

Cons

• Severe .457 caliber impact obliterates squirrel vitals and ruins all edible meat
• Produces only three effective shots per reservoir fill before needing an air recharge

11

Benjamin Marauder BP2264S Synthetic Stock PCP-Powered .22-Caliber Pellet Multi-Shot Bolt-Action

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  9.0
• Brand
  Benjamin

Key specs2

Stock Adjustability

Features an all-weather synthetic stock with an adjustable raised comb to achieve a natural cheek weld with optics.

Feeding System

10-shot rotary magazine or single-shot

Pros & cons52

Pros

• Shrouded rifled barrel provides quiet sound suppression to avoid clearing the woods
• PCP propulsion delivers recoilless shooting that prevents scope zero from drifting
• Adjustable raised comb cheekpiece aligns the eye with mounted hunting optics
• Ten-shot rotary magazine allows quick cycling via a reversible bolt handle
• Caliber .22 provides solid energy transfer on small game without excessive tissue damage

Cons

• Factory package does not include a riflescope or optic mounting rings
• Requires an external high-pressure hand pump or tank to charge the air cylinder

12

Gamo 611006325554 Whisper Fusion Mach 1 Air Rifle .22 Cal

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  9.2
• Brand
  Gamo

Key specs2

Dual-Stage Noise Reduction

Whisper Fusion technology utilizes two dampening chambers to significantly quiet muzzle blast during woods hunts.

Optic Recoil Protection

The RRR Recoil Reducing Rail uses polymer supports between aluminum plates to absorb piston recoil and maintain optic zero.

Pros & cons42

Pros

• Whisper Fusion dual-chamber sound moderator provides quiet muzzle discharge in timber
• Recoil Reducing Rail protects the included 3-9x40 scope from piston shock to hold zero
• Custom Action Trigger allows separate adjustment for first and second stage pull
• Large 33mm IGT gas piston delivers smooth cocking and velocities up to 1100 FPS

Cons

• Single-shot break barrel requires loading pellets by hand between each shot
• Long 49.25-inch overall length requires deliberate care when moving in brush

Last update on 2026-09-18 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Will magnum velocity ruin squirrel meat on impact?

Excessive pellet speed can tear through small game quarters if you shoot lightweight alloy rounds at high velocities. Rifles like the Gamo Swarm Whisper push .177 pellets up to 1300 FPS, while the Gamo Whisper Fusion Mach 1 reaches 1100 fps in .22 caliber with alloy pellets. Switching to lead pellets moderates velocity, as shown by the Gamo Whisper Silent Cat dropping from 1200 FPS with alloy pellets down to 1000 FPS when firing lead ammo. Focusing on surgical headshots preserves edible meat and avoids destructive body hits when targeting squirrels in high timber.

Is .22 or .177 caliber better for humane squirrel hunting?

Both calibers drop game reliably, but .22 caliber delivers heavier energy transfer to anchor squirrels cleanly to tree limbs. Rifles like the Benjamin Marauder BP2264S deliver .22-caliber pellets from a PCP platform that dispatches game without explosive meat damage. While .177-caliber rifles like the Benjamin Armada BTAP17SX offer flat trajectories for target shooting and small game, lighter projectiles carry less mass into the target. Choosing .22 caliber strikes an effective balance between clean knockdown energy and meat conservation.

How does gas piston technology protect scope zero from recoil?

Gas piston mechanisms replace traditional coiled steel springs to generate smoother cocking and lower firing vibration. In rifles such as the Gamo Swarm Whisper, the Inert Gas Technology piston cushions the sharp recoil cycle that frequently loosens optical mounts. Packages like the Ruger Targis Hunter Max pair factory optics with an ergonomic stock and a rubber recoil butt pad to help absorb physical impact. When selecting gas piston air rifles for hunting, verify that mount hardware matches factory specifications to ensure the optic holds its zero under repeated fire.

How do integrated sound suppressors prevent spooking game in the canopy?

Multi-chamber moderators capture and vent expanding air before the pellet exits the muzzle, reducing the sharp crack that alerts nearby squirrels. The Gamo Whisper Fusion Mach 1 utilizes two built-in chambers to quiet the report significantly during every discharge. Similarly, Whisper Noise Dampening on the Gamo Swarm Whisper cuts down muzzle blast during elevated shots. Suppressing the rifle sound allows you to take game without alarming the rest of the canopy.

Which rifle action works best for fast follow-up shots in tall timber?

Multi-shot repeating systems minimize excess hand movement when tracking active squirrels across upper branches. The Gamo Swarm Whisper .22 features a 10-shot rotary magazine that automatically chambers a pellet every time you cock the break barrel. Multi-shot bolt-action PCP rifles like the Benjamin Marauder offer fast cycling through a magazine and include a reversible bolt handle for left- or right-handed shooters. These repeating designs keep your eyes on the canopy rather than hunting through pockets for loose ammunition.

How does rifle weight affect aim stability during steep canopy shots?

Rifle weight directly affects shoulder fatigue when aiming upward into tall hardwoods. Lightweight rifles, such as the 5.43-pound Gamo Swarm Whisper or the 5-pound Benjamin 392S, reduce physical strain during extended overhead tracking. In comparison, heavier bench-oriented models like the 12.3-pound Benjamin Armada BTAP17SX demand physical support to stay steady in the woods. Choosing a stock with an adjustable raised comb cheek-piece, like that on the 7.8-pound Benjamin Marauder, ensures solid eye-to-scope alignment while sighting elevated targets against a safe outdoor backstop.