JSB Exact Jumbo Monster Grand 5.52 mm pelletes, 150 pcs. (546488-150)

Exact Jumbo Monster Grand .22 is one of the heaviest pellets in the Exact Jumbo family from JSB, in 5.52 mm caliber. Its high weight and geometry were developed specifically for the most powerful FAC-class air rifles (without an energy limit). The heavy projectile maintains high flight stability at energies above 50 J, as well as in very powerful rifles producing 70 J and more. Its high weight, refined shape, properly distributed center of gravity, and good concentricity promote a stable flight path and precise shooting at long distances. This pellet is intended primarily for powerful PCP air rifles and other FAC-class airguns, where a heavier projectile can fully utilize the energy potential of the platform.

Precise and selected – an exceptionally heavy pellet, ideal for long-range shooting with powerful FAC air rifles. Declared muzzle velocities are v₀ = 140 m/s for rifles producing 16–17 J, v₀ = 250 m/s for 50 J, and v₀ = 295 m/s for 70 J. The pellet’s high weight supports good energy retention in flight, reduces susceptibility to wind drift, and, when matched with the right rifle, barrel, and velocity, can provide very high stability at long range. This makes the Monster Grand a particularly interesting choice for precision long-range shooting with powerful FAC air rifles. 50 J, 70 J, and long range – these are exactly the conditions in which the Monster Grand shows its greatest advantages.

Exact Jumbo .22 – the series was developed with precision shooting at longer distances in mind. JSB cites examples of shooters hitting small targets at distances of up to 200 meters, as well as a group size of 19 mm at 102 yards, or approximately 93 meters. These figures refer to the Exact Jumbo .22 family and demonstrate the potential of a classic Diabolo pellet in a properly matched setup. Of course, final accuracy depends not only on the pellet itself, but also on the specific barrel, rifle energy, muzzle velocity, weather conditions, and the shooter’s skill.

The Exact Jumbo series uses a specially developed shape, properly distributed center of gravity, and high concentricity. After production, the pellets also undergo manual quality control, helping to maintain high consistency from pellet to pellet. In the Monster Grand, these features are combined with an exceptionally high weight, creating a pellet focused primarily on powerful FAC air rifles, high stability, and shooting at longer distances.

Technical specifications:
Product number: 546488-150
Name: Exact Jumbo Monster Grand .22

Caliber: 5.52 mm / .22
Weight: 1.85 g / 28.55 gr
Package: 150 pcs

Shape: Round
Skirt: Smooth
Material: Lead

Brand: JSB
Manufacturer: JSB Match Diabolo a.s.
Country of origin: Czech Republic

Prepared by: Sharg®