Gamo G-Magnum 1250 Jungle Air Rifle 6.35 mm incl. 3-9x40 Scope



Gamo G-Magnum 1250 Jungle 6.35 mm – powerful 45-joule break-barrel air rifle
The Gamo G-Magnum 1250 Jungle 6.35 mm is a particularly powerful break-barrel air rifle for shooters who deliberately choose a large calibre and high power output. This 6.35 mm (.25) version produces approximately 45 joules and combines a powerful spring system with a robust synthetic Jungle stock, adjustable fibre-optic sights and an included 3-9x40WR1PM scope.
With its 33 mm Gamo Power cylinder and ability to use heavy 6.35 mm pellets, the G-Magnum 1250 Jungle is clearly designed for powerful shooting performance. Despite its traditional break-barrel design, the rifle incorporates several modern Gamo technologies, including the CAT trigger, SWA recoil pad and RRR scope rail.
Powerful 6.35 mm performance with 45 joules
This version of the G-Magnum 1250 Jungle is chambered in 6.35 mm / .25 and produces approximately 45 joules. The larger calibre allows considerably heavier pellets to be used compared with typical 4.5 or 5.5 mm air rifles.
Gamo specifies a muzzle velocity of up to approximately 250 m/s for this 6.35 mm version. Actual velocity will depend on the type and weight of pellet used. The combination of 45 joules and 6.35 mm calibre makes this model particularly attractive to shooters who value high power and strong impact on the target.
Powerful spring system
The G-Magnum 1250 Jungle uses a traditional steel mainspring as its power source. Breaking the barrel cocks the mainspring while opening the breech so that a single pellet can be loaded directly into the barrel.
A major advantage of this system is its independence from external filling equipment. No high-pressure air bottle, compressor or CO2 cartridge is required. Simply load a pellet, close the barrel and the rifle is ready for the next shot.
Gamo Power 33 mm cylinder
The G-Magnum belongs to Gamo's powerful Power series and features a 33 mm cylinder. Its large cylinder volume helps provide the air displacement required by this high-powered break-barrel system and contributes to the impressive performance of the G-Magnum.
CAT adjustable trigger
The CAT (Custom Action Trigger) allows the shooter to adjust the trigger characteristics more closely to personal preference. A predictable trigger is particularly important on a powerful air rifle, as controlled trigger release helps minimise unnecessary movement while taking the shot.
SWA – Shock Wave Absorber
The rear of the stock is fitted with Gamo's SWA (Shock Wave Absorber). This recoil pad is designed to help absorb part of the felt recoil and improve shooting comfort.
This is particularly useful on a powerful spring-piston air rifle such as the G-Magnum 1250 Jungle, where the movement of the heavy spring and piston can be clearly felt during the firing cycle.
RRR Recoil Reducing Rail
For mounting optics, the rifle is equipped with Gamo's RRR (Recoil Reducing Rail). This rail is designed to help reduce the stress transferred to the mounted optic by the recoil generated during firing.
This is especially relevant with a powerful spring-piston air rifle, as this type of power system produces a characteristic recoil cycle. Using a suitable airgun scope and secure mounting system is therefore important.
Includes Gamo 3-9x40WR1PM scope
The Gamo G-Magnum 1250 Jungle is supplied complete with a 3-9x40WR1PM scope. Magnification can be adjusted from 3x to 9x, making the scope suitable for a variety of shooting distances.
Once mounted and correctly zeroed, the rifle provides a complete shooting combination without the immediate need to purchase separate optics.
Adjustable fibre-optic sights
In addition to the scope, the G-Magnum 1250 Jungle features adjustable fibre-optic sights. The contrasting fibre-optic elements make it easier to quickly align the front and rear sights, particularly in less favourable lighting conditions.
This means the rifle can also be used without a scope, giving the shooter the choice between open sights and optical aiming.
Synthetic Jungle stock
The distinctive Jungle stock gives this version its recognisable appearance. Its synthetic construction is robust, easy to maintain and less sensitive to changing weather conditions than a traditional wooden stock.
The ergonomic thumbhole design provides a stable and natural position for the shooting hand. Combined with the green Jungle finish, it gives the G-Magnum 1250 a distinctive character that sets it apart from more conventional air rifles.
Who is the Gamo G-Magnum 1250 Jungle 6.35 mm suitable for?
The Gamo G-Magnum 1250 Jungle is primarily suited to experienced recreational shooters looking for a very powerful 6.35 mm break-barrel air rifle. With approximately 45 joules, heavy .25 pellets and a weight of around 3.2 kg, this is clearly not a lightweight entry-level air rifle.
For shooters who want a completely self-contained air rifle without the filling equipment required for a PCP, while still wanting a large calibre and substantial power, the G-Magnum 1250 Jungle offers a particularly powerful combination.
Key features
- Brand: Gamo
- Model: G-Magnum 1250 Jungle
- Calibre: 6.35 mm / .25
- Power: approximately 45 joules
- Muzzle velocity: up to approximately 250 m/s
- Power source: steel mainspring
- Break-barrel, single-shot system
- Gamo Power 33 mm cylinder
- CAT Custom Action Trigger
- SWA Shock Wave Absorber
- RRR Recoil Reducing Rail
- Adjustable fibre-optic sights
- Synthetic Jungle stock
- Ergonomic thumbhole stock
- Manual safety
- Overall length: approximately 122 cm
- Weight: approximately 3.2 kg
- Includes Gamo 3-9x40WR1PM scope
Gamo air rifles at SEM Jacht & Schietsport
At SEM Jacht & Schietsport you will find a range of Gamo air rifles, pellets, scopes and accessories. The G-Magnum 1250 Jungle 6.35 mm is particularly attractive to shooters looking to combine a traditional break-barrel design with a large calibre, approximately 45 joules of power and an included scope.
Product specifications
- Brand
- Gamo
- Caliber
- 6.35mm / .25
- Powersource
- Spring
- Energy (joule)
- 45
- Muzzle velocity (m/s)
- 250
- Cockingsystem
- Breakbarrel
- Safety
- Yes, manual
- Weight (gram)
- 3300
- Total length (mm)
- 1310
- Sight
- Adjustable open sights
- Scope included
- Yes, 3-9x40
- Mounting rail
- 11mm dovetail
- Stock
- Ambidextrous
- Stock materiaal
- Synthetic












