Gamo Whisper Fusion Mach 1 Air Rifle ~ Review

by Dr. Jim and Mary Clary
GAMO Whisper Fusion Mach 1 .22 Caliber Air Rifle ~ Test & Review

Gamo Whisper Fusion Mach 1 Air-Rifle (Illustration courtesy of GAMO, Inc.)
Gamo Whisper Fusion Mach 1 Air Rifle

United States -( This is the most robust air rifle that we have ever tested. The weight and balance are perfect, making it easy to get on target for a shot.

The following are some of the unique features of the Gamo Whisper Fusion Mach 1 Air Rifle that we liked:

First up is the Recoil Reducing Rail system (RRR). Most airguns have grooves for mounting the scope rings, similar to a lot of conventional rimfire firearms. A common problem has been the inability to tighten the rings down to prevent slipping due to the intense recoil of high-power airguns. That problem has been eliminated with a very secure 5-screw mounted rail (RRR). This “Picatinny style” rail consists of two pieces which are separated by polymer struts. The unique design of this patent-pending design virtually eliminates the recoil-stress on the internal components of the riflescope.

And, speaking of recoil, the Shock Wave Absorber (SWA) recoil pad is just as effective as the Limbsaver pads on our high power hunting rifles. There are very few airguns that bother putting effective recoil pads on their guns. Most simply use a piece of molded rubber to cover the buttstock and call it a “recoil pad.”

Gamo Whisper Fusion Mach 1 Air Rifle :
Gamo Whisper Fusion Mach 1 Air Rifle

GAMO's Whisper Fusion technology was designed to quiet down their spring powered airguns and mitigate the “twang.” That technology was also applied in the Gamo Whisper Fusion Mach 1 Air Rifle. Without it, the sound of this airgun would rival .22 caliber rimfire rifles.

The conventional spring power plant found on GAMO (and other) airguns has been replaced with a new 33-millimeter pneumatic cylinder. This is called the Inert Gas Cylinder (Inert Gas Technology – IGT). When cocked, it compresses the air to deliver a consistent pressure which propels a .177 PBA pellet to a velocity up to 1,420 fps and a .22 PBS pellet to a velocity up to 1,020 fps. We confirmed the latter velocity with our Caldwell Premium Chronograph.

And finally, the folks at GAMO have given us what we have been asking for: An adjustable trigger. The Custom Action Trigger (CAT) allows the shooter to independently adjust both the first and second stage of the trigger.

It is great, and out of the box, the trigger pull was set at 2.25 lbs…. incredible for a “standard” airgun.

All that remains for us to do was to shoot the Gamo Whisper Fusion Mach 1 Air Rifle for accuracy. For that, we selected GAMO Red Fire pellets. We have used these pellets before, and they are not only lethal but very accurate.

GAMO Red Fire pellets
GAMO Red Fire pellets

After “dialing in” the rifle at 25 yards, we shot for accuracy with one of the top gun rests, the Caldwell Lead Sled. To state that this gun is a “tack driver” would be an understatement. We consistently shot groups of ten pellets that measured under one inch in diameter (center to center).

Gamo Whisper Fusion Mach 1 Air Rifle's 25 yard group with .22 caliber Red Fire pellets.
Gamo Whisper Fusion Mach 1 Air Rifle's 25-yard group with .22 caliber Red Fire pellets.

Having hunted squirrels in the deep woods of Alabama, Mary can tell you that when the bushy tails are high in the canopy, it is not uncommon to require two pellets to bring them down. A friend of hers, Fedor Palacios, was at the GAMO Squirrel Master Classic in February and brought down two squirrels with one shot each using Red Fire pellets and his GAMO Mach 1. Ok, we'll admit that Fedor is a good shot…. but, if the Gamo Whisper Fusion Mach 1 Air Rifle and Red Fire hadn't been such a lethal combination, he might still be shooting at those squirrels.

The Features and Specifications of the Gamo Whisper Fusion Mach 1 Air Rifle are:

  • .22 caliber
  • Velocity: 1020 feet per second with PBA Platinum
  • .177 caliber
  • Velocity: 1420 feet per second with PBA Platinum
  • 33 mm cylinder – IGT Mach 1 power plant (Inert Gas Technology)
  • Single Shot
  • Break Barrel – Single Cocking System
  • Manual Safety
  • Fluted Polymer Jacketed Rifled Steel Barrel
  • Whisper Fusion Dual Noise Dampening Technology
  • Cocking Effort: 32 lbs**
  • Trigger: Two-stage fully adjustable CAT (Custom Action Trigger)
  • RRR Recoil Reducing Rail
  • Fiber optics front sight with hood
  • Adjustable fiber optic rear sight
  • Manual Safety
  • All Weather Molded Synthetic stock
  • SWA (Shock Wave Absorber) Recoil Pad
  • Ambidextrous: Cheekpiece – molded on each side
  • Roughened grip areas on stock – easy to grip under all weather conditions
  • VF 3-9×40 air rifle scope with rings for rail mounting
  • Weight: 6.47 lbs.
  • Length: 43.3 inches
  • Barrel Length: 17.8 inches
  • 3-9×40
  • 5 Year Warranty
  • 2016 MSRP: $249.99

We found the best price on the Gamo Whisper Fusion Mach 1 Air Rifle online at Amazon ~ AmmoLand News

**Note: Some break barrel action guns may be harder to initially cock then others. It may take added force to break open the barrel for the first few uses. We recommend that you break it open, not fully cock the gun, 10-15 times to loosen the barrel and make it easier for future use.



GAMO ProShot ID System


Before we close out this article, we would like to mention the new GAMO ProShot ID System. This reference system was devised by GAMO and is unique to the airgun field. It labels the best application for each rifle in their line, AND it matches the various GAMO pellets to those applications. The system involves three color codings: Red, Green & Blue.


Provides accuracy and high velocity – ideal for nuisance animals such as mice, rats, birds and snakes. Also perfect for recreational shooting.


Delivers accuracy with higher energy downrange for ultimate impact and penetration — ideal for small game such as rabbits, squirrels, raccoons and crows.


Offers the ultimate in accuracy and consistent performance — ideal for both training and competitive shooting.

The ProShot ID System by no means indicates that a particular gun can't be used for one of the other applications; it is a recommendation to help the consumer decide which gun is right for them. And, since the GAMO pellets are also color-banded, we no longer have to guess which pellet is best for our shooting. We just look for the appropriate color marking on the package and pay the clerk at checkout.

About the only thing that GAMO can't do for you is shoot the gun.

About Jim and Mary Clary:

Jim and Mary Clary have co-authored over three hundred and fifty articles, (and counting) on shooting and hunting. You can read many of them on AmmoLand News.

  • 20 thoughts on “Gamo Whisper Fusion Mach 1 Air Rifle ~ Review

    1. For some comparison, last year I got the Gamo Raptor Whisper .22, gas spring piston probably nearly identical inside as this one. It is very accurate but it absolutely destroys scopes. Already wrecked two 3-9 scopes I got on Amazon, one cost $30. Put the cheap plastic 4X it came with back on and its holding up OK now. When looking to scope this gun you need to make sure its rated for airguns. I chronographed the 14.3 gr domed pellet at 720 fps, and it shoots through a big NH grey squirrel like nothing.

    2. I just purchased the gamo whisper fusion mach 1 put the scope on it and it is just shooting wildly all over the place this is at 25 yards took the scope off and used the open sites took two shots and put both through bullseye is there a scope I can buy that will stand up to the recoil

      1. I just got my whisper fusion mac 1 2 days ago and low a behold the elavation cross hair is broken inside the scope so i cant adjust it up and down. Gamo should leave the scope off and sell it cheaper and we can get are own scope.Theres is a peace of junk m friend had the same problem. Come on gamo ou must be reading there reviews get ride of the junk scopes.

    3. I just purchased a Gamo Whisper Fusion Mach 1 and after about an hour of slowing cleaning the barrel then installing the scope. I set up a target approximately 25 yards away and begin adjusting the scope and sighting in the scope. It took about 20-30 shots to accomplish this.
      I also shot the rifle first, without the scope and the fixed sights were zeroed in right out the box, but my long vision isn’t what it us to be, but for young eyes or good vision would definately get the job done as they are quit good.
      The scope after mounting and shooting 50 shots has not moved, but the optics in my opinion are only adequate, they do not give me a strong clear view at 25 yards distance, to be fair I’m not sure if it is the scope or my 64 year old eyes. I’m do for an eye check, but if I had to guess, I’d say that the scope is the culprit. The rifle is so good that I’ll probably upgrade to a better scope to match the rifle.
      I’ve been shooting Gamo Red Fire 15.4 GR and Premier Pointed 14.3 GR and the Rifle seems to perform well with both, I can’t wait to see how both perform at 50 yards.
      The fit and finish of this rifle is excellent and it shoots very strong and I really like it!
      Thanks, Rick Combs

    4. Very tempted to buy one from Amazon because I’ve had no problem returning things I did not like. From reading and watching other reviews it shows it’s a promising air rifle.
      Now as to why I’m holding off getting one, saving up for a Benjamin Fortitude PCP 22caliber due to come out next month. It has all the belles and whistles PCP lovers have been looking for and right around $300.

    5. I have the whisper fusion Mach 1 and can’t hit the broad side of a barn. The scope was crap from day 1 so I’ve removed it a couple of times and it’s still not accurate. I have no idea why — it’s not me as I had an old Beeman and rarely ever missed. What a major disappointment this Gamo has been. Never again would I buy their mess. Wasted a lot of $ and time fooling with this pos

    6. I got my version of the Mach 1 a couple days ago in .177 caliber. On initial inspection, the fit and finish was good, trigger pull was nice, and the power was excellent. It does have some recoil and noise associated with the amount of power it produces. After the third shot, the supplied scope was showing signs of problems. The cross hairs were rotating counter clockwise. I know of no way to fix this so I took the scope off and tried another air rifle scope I had on the shelf. This scope lasted about 20 shots and then exploded. At present I have ordered another highly recommended scope coming from Amazon. We will see how that goes. My long winded point here is that from what I can tell, any accuracy problems here are associated with the optics. In shooting this gun open sights, it is a real tack driver, I am very pleased and will continue to search for a scope that can handle the Mach 1’s recoil.

    7. Sorry but my whisper is not very accurate. First the scope adjustment from 3 to 9 power moves from 9 to 8 power when i shoot it. It will not stay pegged where I put it. I had to buy another scope. So I put another 180 dollars into a better scope. Now I find it still shoots a few shots into a small group and then has a couple of wild flyers that are 3 to 5 inches off 30 yds. Reason, Is that the scope base has a small round pin that they put into a big oval hole. So the scope recoils back and forth when you shoot. Also the pin is too shallow. It has gouged a grove about 1/8 inch long in the base because it has risen out of the oval hole. 700 shots later and as many radical shot patterns I might have a solution. I have to hire someone with a milling machine to redo the pin holes and put longer pins into it. Wonder how much that will be. Twelve different pellets later and even cleaning t he pellets and oiling them with a special accuracy oil from England has led me to believe that my 243 winchester, 17 HMR, and 308 winchester rifles have every thing over this pellet gun. .

    8. OK, guys I have the Gamo Mack 1, I have always had a cheat air gun around but I spend some money and get the air gun that felt more like my hunting rifles. My problem is that I can shot and rifle very well and can put shots at 50 yards together but than a shot will be 6 inches away? I dont know if something s wrong with the gun. I like shooting the gun but if it dont hit what you want it too whats the point. Can someone tell me if I’m doing something wrong are it that just a how a airgun is.

    9. I also own the gamo fusion mach one and 22 caliber. at first I was somewhat disappointed in the air rifle. It was hard to cock, the recoil took some getting used to and was somewhat disappointed in tthe accuracy.

      Well that is not the case today. I used the heavy 21.14 grain grizzly and tried the gamo with the still penetrator and got almost exactly the same size group at 25 yards off the bench. It measured about 1 inch center to center.

      Since I’m not real accustom to the accuracy of air rifles I feel this is reasonable. I have 22 rimfire that will shoot one hole 25 yards..The company customer service I found to be excellent.

    10. You have made your point, now please do something positive and help us novise choose something better, as good, same price point, and possibly the reasons you believe our budget is better operated else where… Thanks You Sir

    11. First of all, I mean no disrespect and support gun and air gun owners in every way. but I can tell this is not an “Air gun site”, this sounds more like a Gamo add. Simply stating the velocities on the box is not adequate for a review, especially for Gamo. Their claimed velocities are always ridiculous. Anyone who doesn’t believe me, fire 150-200 shots through it and then do some chrony tests and you’ll see. Gamo’s velocity claims are done when the rifle is new and still dieseling using their PBA pellets that are extremely light but very inaccurate, and they use their own brand of Speed Oil on the pellets which further increases their speed but also their inaccuracy. Anyone who has just paid almost $300.00 for this rifle and says it’s the best they’ve ever tried must not have shot very many air rifles. I believed that Gamo had cleaned up their act in some ways until a friend of mine got several Gamos that had to be sent back within the last year. They are not the best air gun company IMO, just spend the most money on marketing. Their guns are ALL overpriced compared to comparable models of other brands. I wish good luck to all of you who have bought one of course, just don’t believe everything Gamo tells you. Watch some reviews before buying.

      1. So then…it’s very frustrating when you leave negative comments or subjective or opinionated or anything without giving us some better options. Just sayn… So please Sir for us novise, can we get some unbiased, nothing gain but the heartfelt gratitude of my very hard earned budget. Thank you Sir

        1. Craig’s, it’s frustrating for people to leave a bad comment, this is a little why you have this forum, for people to give feedback. My advice Craig, everyone is different as far as what they want to use a gun for, budgets, the list goes on and on. You will not find a perfect gun out there, take people comments and learn from them, not bash them. Speaking of learning, check your spelling once and awhile, for the live of whatever, really, home schooled, no school? No need to bash me either about the straight forward English language thing either, check for yourself.

    12. First Impressions. Got a consistent 98db reading indoors, concrete floor, painted insulated drywall on walls and ceiling, with nothing to absorb sound, very impressed. The trigger is amazing, no need to mess with it whatsoever! One hole groups with the iron sights at 15 feet using cheap Crossman 14gr domed pellets for the break-in period. First pellet rifle ever, researched like crazy (months of debate) before pulling the trigger. So far this thing is amazing! A gift for #1 son, but he will get it broke in and zeroed for 25 yards. Will try out some other pellets when at the range to see what this beast likes best.

    13. I also love mine. It’s everything and more. The only thing I don’t like about it is , it doesn’t whisper. Sounds more like a 22 long rifle going off.

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