JSB 546236-500 Diabolo Exact .177 4.51mm Pellets 500pk

The company’s best seller, the JSB Exact Diabolo .177 is currently one of the most popular pellets on the market for good reason. Its weight and profile are optimised for FT (Field Target) air rifles, giving consistently stable flight and exceptional grouping.
This pellet uses a very functional profile common to the Exact series and benefits from a higher weight with an ideal centre of gravity, which together produce stable flying properties and reliable, tight groups. The excellent manufacturing and perfect alignment of each pellet ensure repeatable accuracy shot after shot.
Ideal for competition shooters and serious target practice, the JSB Exact .177 4.51 mm is a go-to choice for anyone wanting consistent performance from their air rifle.
- Weight per pellet 0.547 g
- Diameter 4.510 mm (.177)
- Contents 500 pellets
- Muzzle velocity 240 m/s (when airgun power is set to 16 J)
- JSB Diabolo Exact .177 4.51mm Pellets 500pk
. What calibre are these pellets?
They are .177 calibre pellets (4.51 mm head diameter) designed for air rifles that take .177/4.5/4.51 mm pellets.
. What quantity is included in the pack?
The tin contains 500 pellets.
. What is the pellet weight?
The weight is about 8.44 grains for the 4.51 mm variant.
. What shape and design are they?
They have a domed (“diabolo”) profile with carefully designed centre of gravity and alignment for high stability and accuracy.
. What shooting applications are they suitable for?
They are ideal for sport/target shooting, field-target, leisure use and can also work for small game hunting in suitable air rifles.
. What makes them different from standard pellets?
High manufacturing consistency (weight, head diameter, length) means better grouping and accuracy. For example, one test found only ~2.5% variation in weight.
. Are they compatible with all .177 air rifles?
In general, yes, but for the best accuracy, you should match head size and weight to your specific rifle and barrel. Some rifles prefer slightly different diameters (4.50, 4.52, etc).
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
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If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
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