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Gamo Swarm Magnum

Multi-Shot Break Barrel Air Rifle
Sale $249.99
  • Reg Price $299.99
  • List Price $329.99
  • availability In Stock
  • Code: AGD-45608896 · 0.22 cal · 1300 fps ·
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Gamo Swarm Magnum, Scope Combo
Exclusive Upgrade
Gamo Swarm Magnum, Scope Combo
Includes Multi-Shot Break Barrel, Upgraded 3-12x32 Scope & Rings
After a successful launch of their newest multi-shot breakbarrel, Gamo has one upped themselves again. Building on the Swarm platform, Gamo has added more power and a new barrel. Capable of slinging a .22 caliber pellet down range at 1300 fps and creating 26.6 ft/lbs of energy, the new Swarm will appeal to a much broader range of airgunners. Featuring a gas-piston powerplant with Inert Gas technology (IGT), you can count on consistent performance numbers in any type of weather. And with the 10 shot magazine, loading a breakbarrel has never been easier!

Gamo Swarm Magnum Features

  • 10 Shot Repeater
  • Gas-piston powerplant (IGT Mach1--Inert Gas Technology)
  • Breakbarrel
  • Multi-shot
  • Rifled steel barrel
  • Whisper Fusion Sound Suppression technology
  • Recoil Reducing Rail (RRR) maximizes scope lifespan with 99.9% recoil compensation
  • 11mm scope rail with scope stop
  • SWA (Shock Wave Absorber) recoil pad reduces felt recoil by up to 74%
  • All-weather ambidextrous stock
  • Custom Action Trigger (CAT) independently adjustable 1st and 2nd stage, allows you to tailor your trigger. 
  • 15" length of pull
  • 3-9x40 scope
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  • ManufacturerGamo
  • Caliber0.22 cal
  • Velocity1300 fps
  • ConditionNew
  • Ammo TypePellets
  • ActionBreak barrel
  • Barrel StyleRifled
  • BlowbackNo
  • Cocking Effort41
  • Fire ModeRepeater
  • GripAmbidextrous
  • Gun Weight6.88
  • Overall Length49.2
  • Barrel Length21.3
  • Loudness3-Medium
  • MechanismGas piston
  • Rail11mm dovetail
  • SafetyManual
  • Trigger AdjustabilityTwo-stage adjustable
  • UseSmall game hunting/plinking
  • Warranty5-year limited warranty
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Gamo Swarm Magnum
15 Reviews
53% (8)
33% (5)
13% (2)
0% (0)
0% (0)
93% Recommend this product (14 of 15 responses)
By Peter
Great Riffle.
March 20, 2019
Great Riffle. Lots of power. 10 shot magazine works perfectly. Scope is good. Sighted in and got tight grouping. Great deal.
ProsGreat .22 cal Riffle with a 10 shot magazine
Best UsesTarget shooting, Game hunting
By Brent
Powerful repeater, convenient magazine fed airgun
January 26, 2019
This is a fun plinker that is accurate and powerful enough to use for pest elimination. Good build quality. Buy a few extra magazines so you can keep up the fun when shooting targets.

Only negative is the effort needed to cock the breakbarrel mechanism. It takes some getting used to.

Overall I am very -leased with this rifle.
Pros1. 10 round magazines 2. Shot counter 3. Powerful 4. Accuracy 5. Fun!
Cons1. Cocking effort
Best UsesPlinking, hunting small game, target shooting
By Wheat H.
You need this
January 14, 2019
I bought this rifle for the 10 round mag and it does not disappoint. I suggest shooting about 100 pellet through the gun just to get a feel for it and mainly to break it in. Then buy a better scope one with mil-dots. Ive had this air rifle over 2 months and still have a great time with it, whether small game hunting or plinking.
Pros10 round mag, very accurate after you break your gun in.
ConsThere are no iron sights. So if your scope breaks then your out of luck. Also even though it has an indicater of how many shots it has left, ive still dry fired it. Just something to keep in mind if you consider buying this beautiful rifle!
Best UsesSmall to medium game hunting. Rabbit,turkey,coyote, even hogs
By trinantietam
Good all around air rifle
December 28, 2018
Clean it before you do anything else.Shoot 50rds thru it and clean it again! Now you are ready to zero.It's a 2 handed cocker for 58yr old me. I got myself this for x-mas and I am very happy with it. Powerful, accurate,looks cool with 4-16x55 I put on it! I have shot h&n hornets and skenco ultramags have had no jams or issues.It loves gamo rockets. This is like my 5th air rifle and my new go to air rifle.
Prosuh.....everything for me
ConsFilthy bore. And more grease to come from cylinder.(hence the second cleaning before zeroing)
By Everest
Ashburn, VA
An air rifle that is fun for shooting but also need to know more about
December 24, 2018
So I just really shooting this air rifle on yesterday, shot about 70 pellets in about 1.5~2 hours while zeroing my scope.

I did not use the included scope, for that reason, I saw more things than other buyers.

First of all, this rifle is very good. Still performs different between different kind pellets, but not too far apart. Better than my Crosman Benjamin Trail NP All weather, which was a very pellet specific air rifle........... I zeroed my scope (Aipa Rifle Scope 4-12x50EG Dual Illuminated) by using Gamo Magnum pellet.....not really zeroed, but close enough. When tried some Benjamin Destroyer Pointed Expanding, the shot was not too far off. I was happy to see that result.

It is kind of hard to break the barrel, but after a while, you will start to find it can be slightly easy to be loaded, especially if you do pull down method than push down method.

If you use the included scope, you can stop reading my review now. I have no more to say about. But if you like me want to mound different scope, you will want to read my full review as I went through some thing and realized what I need to buy.

This is the first time I actually lean what a dovetail rail is(the NP trail permanently glued a picatinny rail onto the dovetail, so I did not to worry about anything). I do not know what can a dovetail benefit to a shooter.

1. You need to buy a dovetail to picatinny rail. Be aware that a dovetail is 11 mm (3/8") with curved surface, and the base will convert it to the regular 5/8" (20 mm) picatinny rail. You need this in order to mount your selected scope.

2. You NEED TO BUY A RECOIL STOP FOR DOVETAIL RAIL. Mark my words, you DO NEED to buy one. I did not know the importance until I was shooing on yesterday and felt strange, why the somewhat zeroed scope keep one not being so accurate.....and suddenly noticed!!! My tightly screwed on convert rail almost falling out of my air rifle!!!! The vibration of this air rifle was so strong that it will move your rail backward even if you tightly screwed onto it. You need to buy a recoil stop or use the one on the air rifle in order to stop the movement of your rail. Or you have to find a way to do a pin on the dovetail to stop your picatinny rail.

3. The vibration is very strong, make sure you check your scope screw every each shot. Because....I find my tightly secured screw always got a bit loos after 1 or 2 kicks that hard.........but you do not quite feel any force on your shoulder. Good for the force damping butt design.
ProsSee my review
ConsSee my review
By Phil G.
malibu, ca
December 15, 2018
powerful and accurate from 30 yards in
Proslight, 10 shot clip
Best UsesI'm more of a target shooter and I find this rifle to be a fun one
By Thomas
Boquern Puerto Rico
It's a Beast!
November 2, 2018
Just arrived! First impressions are very positive. I love the stock and how well you can lock into your shoulder with it. This rifle is trigger sensitive so hold it tight. As with any new rifle you have to shoot shoot shoot to break it in! Watch out Iguanas....5 rounds at 35yrs in a dime. I purchased this Magnum for the big IGUANAS at extended range....oh the 10 rd mag.... love it and it really works flawlessly....way to go.
ProsVery powerful Accurate 10 rd mag Stock
ConsIt's a magnum so yes its harder to cock Trigger sensitive Manageable Recoil Scope... base
Best UsesHunting... serious power....really I was shocked
By brian
, Boscawen NH
very powerful
October 26, 2018
my first magnum break barrel and initially i loved it, very accurate and not horrible cocking effort, but after about a tin of pellets the cocking motion started to become very gritty and would stick half way through the cycle, removed the action from the stock and it looks like the slide is digging into the tube so im not shooting it at this time i guess i will have to look into the warranty on this
Conshopefully none if they fix my cocking problem
By Roger
Pasco, Wa.
Awesome pellet gun
September 19, 2018
This is a great pellet gun. It does shoot different with different types of pellets. But this is not a pellet gun for kids. My seventeen year old granddaughter had a lot of trouble to cock it on her own and she plays sports in high school. I sighted it in at about 25 yards. I hung the target on a old pallet and the pellets blew through the pallet boards. It's got a lot of punch.
ProsLots of power for small game.
ConsNot good for kids. Takes some strength to cock it.
By Blair
Lhc, Az
Very powerfull
September 19, 2018
I was pleasantly surprised at the power this delivers. May have only shot about 50 rounds to get scope sighted in so far but shoots awesome. Quiet too. For the power it has.
It is hard to cock for me cause at almost seventy years old I'm not as strong as I used to be, but I can get it done due to the added leverage the suppressor length provides.
It is real long gun at almost 50 inches long. I thought the factory trigger settings felt good for me, so have not changed it.
ProsPowerful, quiet, multiple shots, good feel to trigger
ConsHard to cock
Best UsesTarget practice, pest control, having fun.
By R
Atlanta Ga.
You must be a body builder to cock this gun!
August 23, 2018
I just received the Gamo Swarm .22 magnum break barrel air rifle. I cleaned it first and headed to the range. I got a serious shock when I attempted to cock the break barrel. I had to seriously wrestle with it each time. This is a gun for body builders or just plain big guys.
Now for the good stuff. I dialed in the included scope at 50 yards. I was able to place dime sized groups using a "Lead Sled" to stabilize the rifle. I was shooting Red Fire Gamo pellets.
I am 72 years old, 5'10", 160 lbs and in great health. Just not strong enough to cock this rifle without great effort.
ProsShoots very accurate when stabilized.
ConsNot for people who are not "that strong." A disclaimer should be placed on any ad for this product stating "you must be very muscular to operate this product."
By robert n.
repeating powerhouse
August 20, 2018
Have not had time to really the magnum through all my testing. However, after getting zeroed in, the love affair did present strong chance of continuing. 5 shot groups at 35 yards are inside one inch with H & N Barracuda's. No issues there! Happily ordered three more magazines. And the 1300 fps is notably ferocious. tears through a 1/16 thick sheet of steel so violently, the sheet bears a .45 size hole result. Think exit wounds on vermin will be seriously messy?
Only one complaint - The darn thing is harder to cock than my Hatsan Carnivoir .30, which has actually lightened up some with a couple hundred shots through it now.
hope my new Swarm Magnum in .22 breaks in with same improvement. Although, lets face it. When that field full of crows is found, joy shall overcome effort and recoil!
ProsPower Plus!, with consistent accuracy and quick followup shots without the high cost of PCP rifles. Surprisingly low weight and ergonomic comfort in handling.
ConsVery heavy cocking force when new. Only time will tell if she will soften up with love and attention.
Best UsesLong range hunting with confidence and accuracy.
By Michael
Would have been 5 star if it weren‚€™t so picky on pellets
August 17, 2018
I have shot over 500 pellets through my gun so far. It took roughly 300 rounds for it to break-in (smoother cocking with less force, more consistent velocities, etc.). It was a bear to cock this rifle until I reached the 250th cycle. After the break-in period, I tested 29 different pellets at 20 yards and the top 5 for accuracy were then tested at 40 yards. Only 6 pellets came in under 0.75‚€ group at 20 yards. To date, the best pellet for accuracy has been the Gamo Red Fire .22 cal. My stats for that pellet are:

Gamo Red Fire .22 cal., 15.40 gr. ‚€” Average velocity: 909.24 FPS, SD: 7.42 FPS, group size: 0.51‚€ @ 20 yards & 0.790‚€ @ 40 yards

Most pellets tested were high quality brands, but were not very accurate from my rifle. The quest for the most accurate pellet in my rifle continues.

I have managed to go supersonic with 3 different PBA pellets... two fairly accurate at 20 yards.
Caution: supersonic pellets are LOUD! Almost rivals the sound from a .22 LR. Definitely not backyard friendly.
I did not reach Gamo‚€™s advertised 1300 FPS range, but did achieve 1211.4 FPS with their platinum round (@ 328 ft. elevation).
Subsonic rounds are pretty quite... comparable to my old multi pump .177. I get more noise from my backstop than from the subsonic pellets.

My gun is somewhat hold sensitive: it can be shot equally accurate by any of the normal holds (benchrest and bag, shotgun grip, artillery hold, etc.). However, when switching between holds, my point of impact changes (not the accuracy). Therefore, you need to sight in using the hold that you would be using for your intended purpose (i.e. of hand or bipod for hunting, bench for target, etc.).

Reliability has been very good, no loosening screws or feed problems yet. I love the swarm 10 round clip feature. It greatly improved my enjoyment while target shooting.
ProsVery accurate with the right pellet, 10 shot clip
ConsExtremely pellet picky
Best UsesHunting or pesting
By Sammy
gamo swarm magnum 22
August 16, 2018
About 5 years ago I bought my first break barrel air rifle from Wal-Mart single shot spring operated. Still got it and still works. About two 3 weeks ago I got my eye on gamo swarm maxxim 177 also from Wal-Mart and bought it. After many reviews on this air gun I found out the reviews were correct. The barrel was easy to break down and the shot groups at 30 yards were very good groups that would fit inside a finger nail The scope was good for this type of air gun and had no problems dialing it in. Since I was in a buying mode my eye was on gamo swam magnum 22 read the reviews and the guys at Airgun Depot had it my possession about 4 days later after my order. I also order some cleaning rods, pellets for the 177 and 22. The pellets for the 22 were JSB exact jumbo heavy diabolo and they dial in very good. At 30 yards my groups were great could put them also in inside of a finger nail. Almost on top of one another. The scope was good same as maxxim. The 22 seems to shoot a little harder than the 177. 177 air gun is lighter and much easier to cock.
ProsSeems to very accurate and it will kill any small game with the proper shot. I shot at a milk jug full of water at 52 yards and it went clean thru. The main reason I went with both guns is the ten round clip, love that
ConsI am a senior citizen and it takes a lot of effort to cock this rifle. Sometimes I have to use both hands to bring this barrel down. Maxxim 177 is a piece of cake compared to this rifle
Best UsesMostly varmints, back yard fun
By Gene
Great 'first' air gun
August 7, 2018
Many decades ago I owned a pellet gun and a BB gun...this is NOT one of those. Although the gun arrived with a bad scope, GamoUSA quickly replaced it with a new one with minimal effort and at no charge to me. I have been using the gun for pest removal and have found it to be accurate once the scope is properly sighted (have only been using to ~ 30 yards). The break barrel can be a bit of a challenge, as it requires some force to manipulate, but seems to become more manageable the more it is used (probably some sort of break-in plus developing muscle memory for a somewhat awkward motion). The multi-shot feature allows for reasonably rapid firing. Having used the rifle for several weeks, I am pleased with the purchase and would recommend.
Prosaccurate, powerful, scope included, multi-shot, well-built
Best Usestarget, pest/varmint
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