Date: 24/3/2019 12:17

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Gamo Bone Collector Bull Whisper IGT Air Rifle

4.5110 reviews
Gamo Bone Collector.

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  • Description
  • Specifications
  • Customer reviews
  • Q & A: 15 answered questions
  • 2013 Best Seller.
    2013 Best Seller
  • Gamo's CAT -.
    Gamo's CAT - Custom Action Trigger. New, independently adjustable 2 stage trigger.
  • Shock Wave Absorber.
    Shock Wave Absorber Recoil Pad absorbs up to 74% more recoil.
  • Gamo's IGT (Inert.
    Gamo's IGT (Inert Gas Technology), improves your knockdown power, reduces cocking efforts, and lessens vibrations.
  • Whisper noise dampener.
    Whisper noise dampener reduces the sound by 52%, compared to unsilenced spring guns.
  • Gamo's RRR (Recoil.
    Gamo's RRR (Recoil Reducing Rail) Technology subdues the taxing stresses placed on your scope from the intense recoil of air guns.

Gamo Bone Collector Bull Whisper IGT air rifle

  • IGT gas piston (IGT=Inert Gas Technology)
  • Breakbarrel
  • Single-shot
  • 11mm optics dovetail
  • No open sights
  • Bull Whisper noise dampener
  • Rifled steel barrel with fluted polymer jacket
  • All-weather synthetic green stock with black rubber inserts
  • Dual raised cheekpieces (ambidextrous)
  • Textured pistol grip and forearm
  • Manual safety
  • Custom Action Trigger (CAT) independently adjustable 1st and 2nd stage, allows you to tailor your trigger
  • 2-stage adjustable trigger
  • Shock Wave Absorber (SWA) recoil pad absorbs up to 74% more recoil
  • Recoil Reducing Rail maximizes scope lifespan with 99.9% recoil compensation

  • Includes 4x32 scope, mount, elasticized scope lens covers, hex wrench, and cleaning clot

Benefits of the IGT over a metal mainspring:

  • Smoother cocking
  • Smoother shooting
  • No spring torque
  • No spring fatigue, even if you leave it cocked for hours
  • Functions perfectly in cold weather
  • Lasts longer than a metal spring

Gamo has entered the field of gas pistons with a Whisper! The Bone Collector Bull Whisper IGT air rifle is not only incredibly powerful, but it has many special features that'll set it apart from ordinary breakbarrel rifles with regular metal springs. Their proprietary gas piston means you can cock the gun and wait to take your next shot without worrying about a metal spring taking a set or weakening. Gas pistons are robust and do not lose anything in either area. Plus, gas pistons are known to shoot MUCH smoother and deliver less twang and vibration to the shooter!

Let's talk about the Shock Wave Absorber recoil pad. There's an entire industry centered around making aftermarket recoil pads. Their intent is to reduce the felt recoil, because constant recoil pounding into your shoulder is painful and will stop you from shooting as much as you want. While the gas piston is going to seriously reduce the vibration, the SWA recoil pad will stop you from feeling most of the recoil from the remaining movement of the gun.

In the past, Gamo customers have swapped out their triggers with aftermarket ones. No need to do that anymore! The Custom Action Trigger is light years better than the previous version. It's smooth and predictable and allows you to tailor the trigger to your personal preferences. What will that do for you? It'll improve your groups. Unpredictable and heavy triggers or triggers that don't break crisply are often responsible for delivering larger groups. You'll be amazed at how good a shot you are when you shoot the Bone Collector Bull Whisper IGT air rifle!

See manual

other products by Gamo

Caliber0.177" (4.5mm)
Max Velocity1300 fpsMeasured with 4.7-grain ammo
Muzzle Energy17.64 ft/lbsMeasured with 4.7-grain ammo
Barrel Length19.13"
Overall Length43.75"
Shot Capacity1
Front Sightnone
Rear Sightnone
Scopeable11mm dovetail
TriggerTwo-stage adjustable
Suggested forSmall game hunting/plinking
Trigger Pull3.74 lbs
ActionBreak barrel
Body TypeRifle
Weight5.95 lbs
See manual

other products by Gamo

Average Customer Review

4.5 (110 reviews)

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4.0 4.0

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5.0 5.0

By RS on 2019-02-24
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Things I liked: This gun is very powerful. The heft makes it feel much more like a real rifle , which, in turn, makes me shoot it better. The original scope and mount were ok for plinking I guess, but not consistent. After changing it for a BSA 2-7 x32 with objective focus and 4 screw base, wow. Night and day difference, truly accurate a pleasure to shoot. Red fire pellets, as others have said, really shoot great. Quarter size and smaller groups at 30yds. I think the gun can do better, I'm probably the issue but it takes squirrels cleanly out to 40yds which has been my farthest opportunity. The wife also gets great groups and enjoys it for practice when we can't get to the range with our real rifles.

Things I would have changed: As said before, just change the scope and mount out of the gate, don't waste time and ammo with the old one. Use a torque wrench when mounting.

What others should know: It is fairly loud but not rifle loud, the pba pellets sound like a .22lr tho. I loaned mine to a friend for squirrel control and he and his 2 neighbors bought 1 of these and 2 maxxim whisper bone collectors, virtually the same gun. My first gas piston gun and I'm liking it over my very old bee man springer. I would have given 5 star overall but scope and mount change raised investment amount.


5.0 5.0

3.0 3.0

5.0 5.0

By Carl from USA on 2017-01-26
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Things I liked: light and ACCURATE! WOW! i was quite surprised to find this rifle so accurate and quiet. i don't know why P.A. rates the sound level a 3, i'd give it a 2 at most. this gun is way quieter than my gamo raptor whisper.

Things I would have changed: the scope is junk. after a thorough break in, the scope was installed and it failed within 50 rounds. the cross hairs where at 45* after 100 rounds.

What others should know: my rifle loves the gamo red tip pellets. yours will vary. very backyard friendly.


5.0 5.0

5.0 5.0

5.0 5.0

By Charles from USA on 2017-01-18
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Things I liked: 1. Everything! The color scheme is visually appealing. 2. Fit and finish is very classy. 3. The break-in time for the barrel is next to non-existent. 4. Contrary to most of my experiences and perhaps yours,the factory-supplied scope is actually good! The effort required to break open the barrel is easier that most, and is smooth to boot. 5. The trigger is smooth, with a guestimated pull of 3.5-4 pounds, and breaks cleanly. At 23 yards, I can wear out a bullseye in no time. Honestly, what I do now is shoot a hole, and that hole then becomes my target. This is one accurate rifle given the class that it's in!

Things I would have changed: I really can't think of anything I'd change. Mine loves the economical Crosman Premier hollowpoints (.177 / 7.9 grains). It packs a punch...enough to make it a bad day for crows!

What others should know: As with all break-barrels: 1. Clean the bore before shooting 2. Oil all pivot and metal-to-metal points 3. Use loctite on stock and sight mount screws 4. Learn the artillery hold 5. Practice breathing technique. 6. Be aware that the allen wrench isn't a hex type, but a rather a torx style. Actually I like this better because screws are less likely to strip out. Given that nearly all scopes come with hex-head allen wrenches, it WOULD be a nice touch if an extra wrench was provided, but I have a set of torx wrenches anyway, so it's no biggie.


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  • VICENTE from Colombia asked:

    I understand that the Gamo Bone Collector, Raptor and Wildcat has the same IGT power, velocity, weight and recoil. However the only with the RRR option is the Bone Collector. Is it really necessary? or the other 2 rifles will hurt the scope system? I use in the Wildcat Whisper . 22 caliber the Accushot 1 Pc rings and Hammer 3-9X40AO scope, pellets Crosman 14.3 gr.

    • Tyler from USA:

      Necessary, no. Hard to say it helps. I've had scopes break on the RRR system before.

  • John from USA asked:

    Do the Gamo platinum come with this rifle

    • jerry from USA asked:

      the recoil reduction rail is not shown but is in the description ,can anyone clarify ?

      • Val from USA:

        It's there, just an older image

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    Item Description

    GA-61100671W54 [PY-2706-5327]
    Great for pest control & small game.
    Caliber0.177" (4.5mm)
    Max Velocity1300 fpsMeasured with 4.7-grain ammo
    Muzzle Energy17.64 ft/lbsMeasured with 4.7-grain ammo