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JSB Diabolo Exact Monster .177 Cal, 13.4 gr - 400 ct

Only $16.79
$18.99
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  • Code: PY-P-897 · $16.79 · .177 · 13.4 grains · 400 ct
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Estimated in stock date is 11-12-20
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The weight of the Monster Exact Diabolo pellets have been chosen to fit the most powerful air rifles currently available on the market. It is a really heavy weighted pellet that is stable even at higher power levels. A top choice for airgun hunters. Also check out the new Diabolo Beast if you're looking for something even heavier.

JSB pellets are considered to be one of the premier pellets made today. These .177 caliber Monster Exact pellets weigh in at 13.4 grains- which will do the job if you like to hunt or do pest control with magnum air rifles or precharged pneumatic airguns.

JSB Diabolo Exact Monster Features
  • .177 cal
  • 13.4 grains
  • 4.5 mm diameter
  • Cylindrical
  • 400 pellets
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Specs
  • ManufacturerJSB
  • Caliber.177
  • Ammo TypePellets
  • Ammo Weight13.4 grains
  • Pellet ShapeCylindrical
  • Pellet Quantity400 ct
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Reviews
Average Customer Review
4.9
5.011 Reviews
5
91% (10)
4
9% (1)
3
0% (0)
2
0% (0)
1
0% (0)
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5.0
By DeathOctober 31, 2018 Verified Purchase

Excellent weight for a .177 pellet. Must have a 1200 fps or more gun to sling this out there. It almost turns a .177 into a .22 pellet gun and your kill ratio will go up.

Pros
Excellent for squirrel / Rabbit / Crow. One shot and "down goes frazier".... Excellent Penetration from 30 - 40 yards.

Cons
Cant offer anything up here, never have experienced a problem.

4.0
By JoeUSASeptember 18, 2018

As with any gun, there are always going to be an ideal range of weight, diameter and balance that will determine the best pellet for that gun. For my guns that have the necessary power to propel this pellet there's no question but that these are the choice when the shot counts. .177 rounds are notoriously vulnerable to wind but the extra heavy weight and more symmetrical skirt lessen the effect of wind although they do increase the angle of incidence to the POI. However the later is a controllable factor where as the former (the wind) is a uncontrolled variable. The bottom line is, if you're going accuracy at distance and have a rifle capable of sending a projectile of this weight down range efficiently, you'll be very pleased with how these pellets perform. Why 4 stars instead of 5 ? ..... Cost, plain and simple. These are expensive pellets but well worth the cost when the shot is on the line.

Pros
Good QC provides minimal variances in weight and mostly occlusion free heads.

Cons
Your wallet will think you're shooting rimfire rounds.

5.0
By JoeUSAApril 19, 2018

I use theese heavier ammos types to zero rifles and I pull them out when I want tight shot groups.

Pros
you can maximize for foot pounds downrange with pellets like theese

5.0
By ChristopherUSAApril 5, 2018

I have been shooting these through a Gamo Silver Shadow 1ooo and they are accurate up to about 30 feet. Shooting beyond that they lose their velocity very quickly and become not so accurate. No bent pellets and very clean.

Pros
Accurate, hard hitting, clean pellets.

Cons
Velocity drops quickly after 30 feet.

5.0
By Kelly T.February 27, 2018

These pellets produce a consistent one hole groups at 20 yards in my Umarex Gauntlet.

Pros
Accuracy, cost at $14.49 plus discount if purchasing 4 packs at a time( fourth free)

Cons
They may be changing this pellet design soon for the better or worse? I stocked up on the old style, and have not tried the new style.

5.0
By DanUSAFebruary 14, 2018

I use these in my Gauntlet

Pros
good packing and good quality control ( no bad pellets )

Cons
n/a

5.0
By DavidUSASeptember 5, 2017

Great for long range accuracy and penetration

Pros
Penetration

Cons
Tin needs redesigned

5.0
By MichaelUSAJuly 9, 2017

I got these pellets to shoot in my high powered 177 cal guns since the extra weight slow the velocity down so its under the transonic range to keep the accuracy consistent. My B51 loves these heavy pellets and shoots them right in the sweet spot of 890 to 900 fps.

Pros
Very consistent and accurate pellets in higher powered 177cal guns that overpower lighter pellets and shoot the light pellets up in the transonic range which destabilizes the pellets flight causing accuracy to suffer. These also retain good energy down range to provide good knockdown power out at longer ranges when hunting. Also help buck the wind when shot in the high 800s to low 900s velocity ranges. The dumbbell shape really makes this pellets stable out to long ranges.

Cons
The only con I see is they need to come in 500 count tins.

5.0
By ChengUSAApril 28, 2017

I decided to buy this 13.4 grain jsb heavy pallet base on the good review by the previous buyers just to prove them right and they are right! My synth Rod loves these pallets more than any pallets that I've bought.I only use this one for my every days shooting now and they work like charm...Hit hard and on target.I only have limited range of 25 yards and these pallets will hit a nickel almost every times...good enough for me.

Pros
Good quality, accurate,and hit hard and very good for small hunting games.

Cons
Can 't find any.

5.0
By RobertUSAMarch 17, 2017

only took 5 shots to sight in new gun and scope to hit a bull on the target. the pellets went through new 1/2" osb plywood.need more backstop. the squirrels that attack my garden are going to have a bad day.

Pros
great packaging,will buy again.

Cons
none

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Q&A

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Has anybody tried these with the Crosman Vantage NP? Do they fit?

asked Jason from USA

They will fit. They are a bit heavy to shoot very well. A 10 grain will shoot better.

Mark from USA
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