JSB Diabolo Exact, Image 1
JSB Diabolo Exact, Image 1
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JSB Diabolo Exact King Heavy, .25 Cal, 33.95 Grains, Domed, 300ct

rating
5.060 reviews
7 answered questions

$26.99

$0.090 / Rd

Quantity:300 count

150 Count
300 count

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Description

  • .25 caliber
  • 33.95 grains
  • Domed
  • 300 pellets

Please note: The only difference between the original King Heavy and the King Heavy MkII pellets is the outer diameter of the skirt. This dimension on the original MKI pellets are 6.68 - 6.70 mm while the MKII pellets measure 6.58 - 6.60 mm. The appearance of the skirt or back of the pellet can vary.  

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Specifications

Brand
JSB
Caliber
.25 (6.35mm)
Ammo Type
Pellets
Suggested for
Small game hunting/plinking
Projectile Weight
33.95gr
Ammo Shape
Ammo Diameter
.250 (6.35mm)
Length
8.74 mm
Quantity
300
Price per Round
$0.090
Ballistic Coefficient
0.062

Overall Rating

rating
5.060

Ratings

5 star
53
4 star
5
3 star
2
2 star
0
1 star
0

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10 of 60 JSB Diabolo Exact King Heavy .25 (6.35mm) Cal Reviews

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Most Recent
Overall rating
rating
4
Value for money
rating
4
Size/Shape Distribution
rating
4

Very accurate out of my RAW .25 cal.

I think they are way too expensive

If you are looking for best accuracy you will have to weigh them. I found there to be 1.2gr.difference in weights.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

I found these to be consistent in size and shape, I check the pellets for bits of metal in the skirt and found very few that had material that would come out on a Q tip, With the weight being 33.94 grains that shoot hard and will deliver a kill shot out to at least 60 yds. out of both Hatsan Flash and Invader.

Nothing

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

These are very accurate in my 25 Cal avenger.

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Helpfull Review?
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

JSB has been my first choice for years and their sales show I am not the Lone Ranger. They are totally consistent and misses are the fault of the shooter or the weapon.

Nothing I can think of except to produce enough that we don't have a shortage.

If you can't get JSB try some FX pellets. It's as if they are produced by JSB and I have found them interchangeable.

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Helpfull Review?
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Very accurate pellets! Shooting them out of my Benjamin Kratos. I like the buy 4 tins and getting the fourth one free.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

I like how the pellets were packed for shipping. Pellets were very clean and uniform in appearance. The skirts appear slightly thicker than other brands I have tried. Thicker skirts should reduce possible deformation issues as well as creat a more balanced weight distribution front to back in each pellet. This should aid to stabilizing the pellet during flight.

A screw on lid would be great.

I am a bench rest shooter. We strive for tight groups at distance. Having recently purchased a PCP rifle i tried several different brands of pellets with little success of holding any assemblance of acceptable accuracy. That is until I tried these JSB pellets.was able to shoot one ragged hole group at 50 yards. Using these pellets I might be competative with the rimfire shooters I compete agenst.

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Helpfull Review?
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

I bought these for my circa 2006 Airforce Condor. Because the MkII pellet has a smaller skirt than the standard JSB pellet, they did not shoot acceptably in my Condor. However, these are EXTREMELY accurate in a FX Wildcat III using the STX superior liner. I get all 5 shots touching at 100 yards, shooting at 920fps. I did not weight sort them either, so they must have been very consistent weight. Velocity spread was 923 to 919 fps for 30 shots.

Twist lid container would be nice.

These are ideal for airgunners who do not need slugs. I can hit beer bottlecaps at 125 yards every single shot with these.
My hunting range rarely exceeds 100 yards, and these are more accurate than ANY slug I have tried in the FX rifle.

The skirt on the MkII variety is smaller by a few thousandths. I would try a tin of the standard variety with the larger skirt before assuming the MkII will work well in your rifle. I found the standard JSB shoots better in an Airforce, while the MKII do much better in an FX.

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Helpfull Review?
Overall rating
rating
3
Value for money
rating
5
Size/Shape Distribution
rating
3

First, I really like JSB pellets and find they are the most accurate in my guns. However, my latest purchase is causing me a lot of work. I bought two tins of 300, lot number M72/09, and the weight spread goes from 33.5 to 35gns! I am sorting them into .2 grain batches. Normally, the spread is not bad and I can sort into .1 batches. Additionally, compared to my previously purchase ammo, the skirts seem to be rough as if the machinery dies that cut the pellet are wearing out. I don't know how well they will shoot as I have my guns apart for some mods and probably won't get to shoot them for a couple weeks. If possible, I will update my review after I shoot them.

Replace the worn out dies on the pellet machine.

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Helpfull Review?
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

package very will . fast shipping

nothing

will buy again

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Helpfull Review?
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Very accurate.

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