Gamo Silent Stalker Whisper IGT Review


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We all hate stalkers.

Those who eat our food, live in our houses and leave trails that they were there for us to know.

Or those who sneak in our instagrams to see our photo, dig in our facebook profile and read every line of our tweets.

But in the hunting field, we want to be a stalker.

We want silence and stealth.

Because the worst thing is your prey run off right after you miss the first shot with the more-than-necessary sound.

And there is the gun named silent stalker.


Join me in this special review to see if this gun deserves that catchy name that sparks lots of curiosity (and excitement, too!)

Gamo Silent Stalker Whisper – Guntype

gamo silent stalker whisper igt air rifle | gamo silent stalker whisper igt air rifle  review | gamo silent stalker whisper igt air rifle  stock

This airgun powered by Inert Gas Technology (IGT). Gamo, not to be outdone by other air gun manufacturers, has made their own gas piston technology – IGT.

While a spring-piston gun has tar and lube on the metal spring, the grease thickens when the temperature goes really low, a gas piston, on the other hand, needs no lube. Therefore, it won’t have any of the problems experienced by springers.

Moreover, IGT gun has no spring torque, no spring fatigue even when you left it cocked for hours, and gives you smoother cocking . Finally, since there is no spring vibration when shooting, IGT rifle gives you smoother shooting and last longer than spring gun. (For more on 5 types of air rifles you need to know before buying, see this post.)

Gamo Silent Stalker Whisper review Gamo Silent Stalker Whisper IGT Review

This gun is a single-shot break barrel rifle so it means that you can only shoot 1 shot at a time. The barrel is rifled with helical grooves inside the bore to make a pellet spin. (For more on things you should know about air rifle barrels before buying, see this post.)

Moreover, Gamo Silent Stalker features ND52 – noise dampener technology that permanently fits on the muzzle and decreases the audible sound by 52% over the standard spring rifle. Having this amazing silencer on your rifle gives you lots of benefits: First, your hunting dog is less likely affected by noise. Second, it reduces recoil and muzzle blast. Third, it protects shooter hearing ability. And finally, it keeps sensitive neighbors happy while plinking in the backyard and will not disturb your shooting fellows in the range.

The Gamo Silent Stalker is available in both .177 and .22 caliber so you can choose which kind of gun you like most. (For more on how to choose the right air gun caliber for your game, see this post.)


Gamo Silent Stalker Whisper stock

The stock is tactical, all-weather molded synthetic. Unlike woodstock, synthetic stock is much lighter and provides you stable performance in any weather condition. (For more on the in-depth comparison between synthetic and wood stock, see this post.)

The stock is ambidextrous so the left-handed shooter can share the same joy as right-handed shooter when shooting. In addition, it has dual raised cheekpieces on both left side and right side to help your eyes line up faster with the sight. The stock is designed with thumbhole style: it provides more relaxed grip on your wrist by resting the stock on your wrist as opposing to holding the stock up with your hands. Thumbhole grip is best for varmint shooters and for anyone spending lots of time on shooting position such as benchrest shooting.

With this rifle, Gamo has installed a new technology in the stock called SWA- Shock Wave Absorber. It’s adjustable buttpad with three removable absorption cells so you can customize it according to your own need. It provides up to 74% more recoil absorption than standard rubber buttplate. Now you can shoot comfortably and enjoy long-hours shooting without pain on your shoulders.


Since this IGT air rifle available in both .177 and .22, it uses .177 or .22 pellets depending on which caliber you choose.

.177 pellets are cheap, lightweight and give you higher velocity so it’s great for plinking and target shooting. On the other hands, .22 pellets is heavier, more stable on its trajectory and has more than enough knockdown power for dealing with different critters so it’s perfect choice if you want to bring it to hunting field or get rid of pesky pests in your property.

(For more on the differences between .177 & .22 and which jobs they do best, see this post.)


Gamo Silent Stalker Whisper scope other side

If you prefer your gun with open sight, then you must be very happy: Gamo Silent Stalker Whisper’s iron sight is fiber optic sight with the use of optical fiber for the dot. As a result, you could align the sight faster and hit more accurate, even in low-light condition like dusk. The front sight is fixed fiber, while the rear sight is fully adjustable for windage for elevation.

(For more on how many types of air gun sights out there and which one is suitable for you, see this post.)

Gamo Silent Stalker Whisper sight

In case you are not the fan of traditional iron sight, Gamo has installed 3-9x 40 scopes for dead-on accuracy. 40 is the diameter of the front lens, measured in millimeter. 3-9 is the magnification ability of the scope: it means that the picture you see through the scope is 3 to 9 times bigger than the picture you see without it. This variable power scope gives you confidence in long-range shooting, although the fiber optic sight is more than enough in my opinion.


Gamo Silent Stalker Whisper trigger

In the past, Gamo customers have swapped out their triggers with after-market ones. No need to do that anymore. The Smoothe Action Trigger (SAT), is light years better than the previous version. It’s smooth and predictable. What will that do for you? It’ll improve your grouping because heavy, unpredictable trigger is responsible for delivering large group. You’ll be amazed at how good a shot you are when you shoot the Silent Stalker with the brand-new SAT trigger.

Velocity, accuracy and power

Gamo Silent Stalker Bull Whisper generates velocity up to 1300 FPS with .177 pellets and 975 FPS with .22 pellets. These are outstanding velocities compared to other air rifle on the market and it makes this rifle belong to the magnum class in the air gun world. Additionally, since the speed of sound is 1100 FPS (vary with altitude and temperature), you may hear the loud crack if you buy .177 caliber because the lightweight pellet breaks the sound barriers. If you buy .22 one then this is not an issue at all.

Does this IGT rifle meet the advertised velocity? Chrony tests have given us the results as follows: With .177 cal, Gamo Silent Stalker produces 630 FPS with JSB Exact Monster, 975 FPS with Gamo Magnum pellet and 955 FPS with Gamo Pro Magnum . With .22 cal, it delivers 939 FPS and 19.01 FPE with Gamo PBA Platinum 9.7 grains, 758 FPS and 15.18 FPE with RWS Hobby pellet 11.9 gr, 698 FPS and 15.5 FPE with Crosman Pointed Hunting Pellet 14.3 gr, 918.8 FPS and 18.6 FPE with Gamo Raptor PBA gold 9.9 gr, 724.7 FPS and 16.7 FPE with 14.3 gr Gamo Rocket, 575.5 FPS and 16.2 FPE with Gamo TS 22 Long Distance 22 gr, 684.8 FPS and 16.1 FPE with Gamo Diablo Match 15.43 gr, 678.6 FPS and 16.1 FPE with Beeman Silver Sting 15.74 gr, 709.6 FPS and 16 FPE with 14.3 gr Crosman Premiere Domed, 704.2 FPS and 15.7 FPE with Crosman Premiere Pointed, 771.5 FPS and 15.7 FPE with RWS Hobby 11.9 gr, 575.4 FPS and 15.5 FPE with Beeman Kodiak Extra Heavy 21.14 gr, 631.5 FPS and 14.2 FPE with Predator Polymag 16 gr, 714.2 FPS with JSB RS 13.43 gr, 754.8 FPS with Crosman Premiere Hollow Point 14.3 gr, 743.2 FPS with RWS superdome 14.5 gr, 653.8 FPS with JSB 18.1 gr, 843.6 FPS with H&N Baracuda green 12.65 gr, 593.6 FPS with Gamo TS 22 21.6 gr, 675 FPS with JSB Exact Jumbo RS 13.43 gr, 609 FPS with JSB Exact Jumbo Heavy 18.13 gr, 713.2 FPS with Crosman Hollow point 14.3 gr, 675 FPS with Gamo ProMagnum 15.43 gr, 668 FPS with Gamo Pro Hunter 15.43 gr, 689 FPS with Gamo Pro Match 15.43 gr, 631 FPS with JSB 16 gr, 527 FPS with H&N Baracuda 21.14 gr, 740 FPS with 14.5 gr pellet, 670 FPS with14.8 gr H&N, 700 FPS with RWS Super H-point 14.2 gr, 685 FPS and 14.9 FPE with Crosman Premiere 14.3 gr, 727 FPS and 13.97 FPE with RWS Hobby 11.9 gr, and 673 FPS and 14.39 FPE with JSB Exact Express. As you can see, the velocities are not close to the advertised numbers but the muzzle energy is still more than enough to deal with pest and take out small game animals.

Gamo Silent Stalker Whisper review Gamo Silent Stalker Whisper IGT Review

And how about accuracy? The common shooting groups for this break barrel rifle are: 0.41” at 10 yards with Crosman Pointed hunting pellet, 0.279” at 10 yards with Crosman Pointed hunting pellet, dime size at 30 yards, quarter size at 30 yards, 1/2″ at 30 yards, 1/4″ at 33 feet, 0.6” at 25 yards, dime size at 30 to 100 yards, 3/4″ at 30 to 40 yards, bull’s eye at 50 yards, dime size at 45 yards with H&N Baracuda Match, 1/2″ at 45 yards, 1/4″ at 15-20 yards, 1/4″ at 20 yards, 0.25” at 25 yards, small hole at 20 yards, nickel size at 50 yards, 1” at 20 yards, dime size at 20 yards, 1” at 50 feet, 1” at 50 yards, 1/4″ at 75 yards, less than 1” at20 yards.1/2” at 25 meters, 1” at 50 yards, bull’s eye at 25 yards, bull eyes at 25-30 yards, nickel size at 25-30 yards, 1/4″ at 15 yards, 1” at 100 feet, 1/4″ at 25 yards, 1” and 1/4″ at 45 to 50 feet, 0.5” at 25 meters, dime size at 30 yards with H&N pellet, dime size at 30 feet, 1” at 30 yards, 1” at 25 yards, 1/4″ at 10 meters out of the box, dime size at 10 yards, 1/4″ at 30 yards, dime size at 15-20 yards, less than 1/4″ at 30 yards, 2” at 34 yards, 1 1/2″ at 34 yards, zero in at 25 yards, 0.75” at 25 yards. Furthermore, many shooters can hit target at 150 meters, kill bird off a wire at 40 yards with Crosman Hollow Point pellet, drop dove at 40 yards, kill rabbit at 40 yards, hit coke can from 40 yards, hit tin can at 25 yards, kill squirrel at 100 yards, kill pigeon at 50-60 yards, kill a rooster at 30 yards with Diabolo Jumbo Monster 25.39 gr, penetrate 3/8”  through 20 layers of cardboard and 3/4″ sheet of plywood, hit small soup can at 30 meters, kill rabbit at 30 yards, kill squirrel at 35 yards, kill a pigeon at 90 yards, kill possum at 50 feet. There is even a shooter who reported to kill 45 squirrels, each with only 1 shot with this gun! Those tight groups, long distance target acquisition and impressive power of varmints control show that this is incredibly an accurate and powerful gun with the shooting range up to 100 yards.

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  • Caliber: .177” and 0.22”
  • Velocity: 1300 FPS with .177/ 975 FPS with .22
  • Loudness: 3 – Medium
  • Barrel Length: 18.0”
  • Overall Length: 43.0”
  • Shot Capacity:1
  • Cocking Effort: 32 lbs
  • Barrel: Rifled
  • Front Sight: Fiber Optic
  • Rear Sight: Fiber Optic
  • Scopeable: 11mm dovetail
  • Trigger : Two-stage adjustable
  • Buttplate: Rubber
  • Suggested for: Target shooting/Plinking/Small game hunting/Pest control
  • Trigger Pull: 3.74 lbs
  • Action: Break barrel
  • Safety: Manual
  • Powerplant: Gas-piston
  • Function: Single-shot
  • Body Type: Rifle
  • Weight: 7.15 lbs

Customer review

There are lots of customer reviews for this Gamo rifle. Positive reviews show that people love its IGT technology, smooth trigger, amazing accuracy, awesome power and relatively quietness (although not as quiet as “whisper”). Negatives reviews show 2 prominent issues with this gun. The first is the loud noise out of the box: but the sound level will decrease after the break-in period so be patient if you just shoot couples of pellets with this rifle. The second problem is the scope: They said it’s hard to achieve desired accuracy with the manufacturer’s scope. The solution is simple: Simple use the great fiber optic open sight or you can put your own scope on this gun.

  • Proven IGT technology
  • Innovative ND52 noise suppressor
  • Improved SAT trigger
  • Remarkable stock
  • Attractive design
  • Terrific fiber optic sight
  • Amazing velocity
  • Breath-taking power
  • Eye-opening accuracy
  • Quiet for sensative neighbors
  • Bad scope


The price for Gamo Silent Stalker is about 200 dollars.Considering its advanced technology, superb power and accuracy, and lots of awesome features like fiber optic sights, variable zoom scope, it’s very reasonable price in my opinion. At this price level, you’’ll have a lifetime gun that shoots as good as new for years.

There are a couple of different listings online with different prices but the listing I found with the lowest price is the cheapest price among online e-commercial sites like Amazon, PyramydAir, Walmart,etc.

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This air rifle incorporates many Gamo’s new features into one lightweight package. It is powerful, accurate and the all-new SAT trigger is a huge improvement that Gamo’s customers have begging for a long time. The Silent Stalker is best suit for picky shooters who want to own an excellent air rifle with a stunning power and for hunters who want a trusted companion to go into the field.


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