Date: 30/11/2015 12:42

JSB Diabolo Exact Heavy .177 Cal, 10.34 Grains, Domed, 500ct

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  • Description
  • Specifications
  • Customer reviews
  • Q & A: 2 answered questions
  • feature icon
    2014 Best Seller
  • .177 caliber
  • 10.34 grains
  • Round nose
  • 500 pellets

The pellet tin graphics have changed and so has the weight.

In stock

Item Code: JSB-1000018 [PY-P-388]

other products by JSB

Caliber0.177" (4.5mm)
Ammo TypePellets
Pellet Shape
Head Size4.52 mm

other products by JSB

5.0 5.0

5.0 5.0

5.0 5.0

By Kevin from USA on 2015-11-14
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Things I liked: extremely accurate, precision made.

Things I would have changed: screw top tin

What others should know: buy these if you want consistent accuracy. if these don't shoot straight out of your gun, than your gun needs a better barrel.

5.0 5.0

4.0 4.0

5.0 5.0

By David from USA on 2015-10-25
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Things I liked: Very Clean. Virtually no bent skirts.

Things I would have changed: Change to a screw on lid.

What others should know: Recently bought an Air Arms S510 Ultimate Sporter and have been testing a variety of brands and weights of pellets. This seems to be its "magic" pellet. At 1/2 power and below 25 yds. it compared favorably to the lighter 8.4 JSB and Air Arms pellets. from 25 to 50 yards the lighter pellets' groups opened up to greater than inch while the 10.3 JSBs held sub 1/2" groups. I chose the 1/2 power setting to keep the energy below 20 ft/lbs for field target competition.

5.0 5.0

5.0 5.0

5.0 5.0

By Brian from USA on 2015-09-29
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Things I liked: Super ammo for my new LGV. The best for it of all I tried

Things I would have changed: Nada

What others should know: all my air rifles do best with one form/size of JSB ammo. I'm sold on it both in 177 and 22 cal. Brian

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  • Fred from USA asked:

    I have been using 7.3 gr and 8.4 gr JSB Exacts in my Umarex Fusion (CO2) with great precision (3/4" pattern at 30 yards), but I need a heavier pellet on windy days. Would you recommend 10.3 gr JSB Exacts for use in my Umarex Fusion on windy days? The Umarex is shooting the 8.4 gr Exacts at a muzzle velocity of about 650 fps.

    • Dan the Man from USA:

      Yes, they'll work great.

  • Roger Sullivan from USA asked:

    I'm having trouble getting a good groping I just wondering if the heaver pellet would make a difference 7.9G is the heaviest I'v tried.. tell me you'all's thoughts on this thanks...RDS...

    • Chevota from USA:

      Mine was shooting 105fps so I switched to 10gr and now I'm at 80fps. Just teasing you Jerry... Roger; you need to post what gun you're using. Not only does the type of gun matter, but the make/model may mean it's more the gun than the pellet causing you problems. These JSB 10.3gr are excellent pellets and pretty hard to go wrong no matter what gun it is. I highly recommend everyone at least try these baby's. While these are excellent, and may normally be the best in your model gun, guns can be finicky so yours might prefer H&N Barracuda, 10.5 Crosman Premier, or maybe something else altogether. A magnum like a Trail XL or Diana 350 might like the JSB 13.43 even better. Let us know what you have.

    • Jerry from USA:

      if the gun is shooting over 100 fps I would recommend something in the 10 grain area

Compatible with JSB Diabolo Exact Heavy .177 Cal, 10.34 Grains, Domed, 500ct