JSB Match Diabolo, Image 1
special icon
JSB Match Diabolo, Image 1
200+ purchased last month
promotion banner
Put 4 in your cart. Pay for 3.

JSB Match Diabolo Exact King MKII Heavy .25 Cal, 33.95 Grains, Domed, 300ct

rating
5.0109 reviews
4 answered questions

$24.99

$0.083 / Rd

Quantity:300 count

150 Count
300 count

Quantity:

1
In Stock

Estimate Shipping

PY-P-1279info icon Earn 25 Bullseye Bucksinfo icon

Shipped & sold by Pyramyd AIR

60 day money back guarantee

Add to Wish List
Compare

Description

  • .25 caliber
  • 33.95 grains
  • Round nose
  • 300 pellets


MkII pellet has a skirt diameter that is only 6.5mm, making the pellet work a little more reliably in some rotary magazines.

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.  

feature icon

Specifications

Brand
JSB
Caliber
.25 (6.35mm)
Ammo Type
Pellets
Projectile Weight
33.95gr
Ammo Shape
Ammo Diameter
.250 (6.35mm)
Skirt Size
6.50 mm
Length
8.74 mm
Quantity
300
Price per Round
$0.083
Ballistic Coefficient
0.054

Overall Rating

rating
5.0109

Ratings

5 star
100
4 star
5
3 star
1
2 star
3
1 star
0

Review This Product

Tell us what you think

10 of 109 JSB Match Diabolo Exact King .25 (6.35mm) Cal Reviews

Sort By:
Most Recent
Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

These pellets are awesome. I love it.

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

Accurate in my JTS Airacuda (.25 cal.) 10 pellets = dime sized hole at 25 yards.

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

great prices on Ammo

I like that you can get 3 tins of ammo And get the Fourth 1 free Is ships fast at a good price

well worth it

Add a Comment
Helpfull Review?
Overall rating
rating
5
Value for money
rating
4
Size/Shape Distribution
rating
5

Usual JSB produced product, uniform, precise and clean as produced. This particular pellet is uniformly large and fits the oversized bore of my Hatsan 135 rifle. The only pellet so to do.

Obviously, the price point. But, on a materiel side, just keep making them consistently as has been done.

These are THE PELLETS for the Hatsan .25 caliber bore. Hatsan can't seem to make a proper .25 bore based on two Model 135s; one replaced by a second one. None of the JSB competitors' pellets are oversized enough to be accurate in those sloppy bores!

Add a Comment
Helpfull Review?
Overall rating
rating
5
Value for money
rating
4
Size/Shape Distribution
rating
5

very clean and consistent. tried these and regular heavies in my aea hpss and i think these do cycle a little more reliably than the original. the hpss or at least my magazines are very picky about what works and these are supposedly shorter in some dimension to make them cycle better, i think it works./ very hard hitting accurate pellets.

nothing

if the regulars are jamming, try these they might work better they do for me.
the regulars were ok in my gun but did jam a little more often. it is more of a gun problem than an ammo problem in my case but these do seem to do what they are supposed to

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

Shot 8 in one @ 50 yards with a Gen 2(Non-Green Mountain Barrel) .25 Marauder w/ a tune no aftermarket parts. Didn't even weigh or sort the pellets just shot them right out of the tin. Shipping is amazing due to Pyramid air's great packing style

Lower the price, keep the quality. I don't have a pellet press but I imagine these things must cost pennies to make. At the time of the review (July 13 2023) you can buy 5,250 Federal 36gr CPHP 22 LR for $340 or 6.5 cent per round, and that's a firearm cartridge.

Test what pellet works best with your gun. Every gun even from the same manufacturer is slightly different so it could perform different. When you find some that group good, toss the others aside and order a ton of whatever works so you can have them in stock.

Pyramid Air offers a buy 4, get 1 lowest price free. If your gun likes them get all JSB's so you can get the most for your money.

Greg Mar 09, 2024

Nice, I was skeptical too when I heard green mountain quit making the 25 barrels after $h!t show I went through with my 22 mrod, mine shoots the 25.4’s great out to 50 or so, then they get sketchy in any wind, did these solve any similar problems for you?

Add a Comment
Helpfull Review?
Overall rating
rating
4
Value for money
rating
4
Size/Shape Distribution
rating
4

They work fine in all my air rifles.

Somewhere along the line during shipping the tins opened up. Either the factory or you yourself need to tape these tins shut.

Quality air rifle ammunition.

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

Well made product.

Nothing

No

Add a Comment
Helpfull Review?
Overall rating
rating
2
Value for money
rating
1
Size/Shape Distribution
rating
3

Really nothing they are all over the place with my gamo gr magnum.

I'm not sure I just know my rifle hates them.

Be careful buying these they are an expensive mistake and I still have 270 unusable pellets.

Add a Comment
Helpfull Review?
Overall rating
rating
5
Value for money
rating
4
Size/Shape Distribution
rating
4

They were available! Excellent in my FX Dreamline

Price (says everyone)

JSB are very good quality pellets. Pyramid air is a great company to deal with. I was unable to even find these pellets in stock any where in Canada. Thanks Pyramid air!

Add a Comment
Helpfull Review?
Buy With Confidence
Free Shipping

Get FREE shipping on qualifying orders! Any order $150+ with a shipping address in the contiguous US will receive the option for free ground shipping on items sold & shipped by Pyramyd AIR during checkout. Certain restrictions apply.

Free shipping may not be combined with a coupon unless stated otherwise.

View Shipping Info

Shipping Time Frame
We work hard to get all orders placed by 12 pm EST out the door within 24 hours on weekdays because we know how excited you are to receive your order. Weekends and holiday shipping times will vary.

During busy holidays, we step our efforts to ship all orders as fast as possible, but you may experience an additional 1-2 day delay before your order ships. This may also happen if you change your order during processing.

View Shipping Times
Shipping Restrictions
It's important to know that due to state and local laws, there are certain restrictions for various products. It's up to you to research and comply with the laws in your state, county, and city. If you live in a state or city where air guns are treated as firearms you may be able to take advantage of our FFL special program.

U.S. federal law requires that all airsoft guns are sold with a 1/4-inch blaze orange muzzle or an orange flash hider to avoid the guns being mistaken for firearms.

View Shipping Restrictions
Expert Service and Repair
Get the most out of your equipment when you work with the expert technicians at Pyramyd AIR. With over 25 years of combined experience, we offer a range of comprehensive in-house services tailored to kickstart your next adventure.

If you're picking up a new air gun, our team can test and tune the equipment before it leaves the warehouse. We can even set up an optic or other equipment so you can get out shooting without the hassle. For bowhunters, our certified master bow technicians provide services such as assembly, optics zeroing, and full equipment setup, which can maximize the potential of your purchase.

By leveraging our expertise and precision, we ensure that your equipment is finely tuned to meet your specific needs and get you ready for your outdoor pursuits. So look out for our services when shopping for something new, and let our experts help you get the most from your outdoor adventures.

View Service Info
Warranty Info
Shop and purchase with confidence knowing that all of our air guns (except airsoft) are protected by a minimum 1-year manufacturer's warranty from the date of purchase unless otherwise noted on the product page.

A warranty is provided by each manufacturer to ensure that your product is free of defect in both materials and workmanship.

View Warranty Details
Exchanges / Refunds
Didn't get what you wanted or have a problem? We understand that sometimes things aren't right and our team is serious about resolving these issues quickly. We can often help you fix small to medium issues over the phone or email.

If you need to return an item please read our return policy.

Learn About Returns

Get FREE shipping on qualifying orders! Any order $150+ with a shipping address in the contiguous US will receive the option for free ground shipping on items sold & shipped by Pyramyd AIR during checkout. Certain restrictions apply.

Free shipping may not be combined with a coupon unless stated otherwise.

View Shipping Info

Want More?
Join Our Email List for News and Deals!

Join the Pyramyd AIR mailing list: Our e-mails are filled with new products, deals, sneak peeks, tips and tricks, contests and more - sign up today!

Text JOIN to 91256 and get $10 OFF Your Next $50+ Order!

* By providing your number above, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from Pyramyd AIR on 91256. Reply with birthday MM/DD/YYYY to verify legal age of 21+ in order to receive texts. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.