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Steel Core SC-76 Thunderbolt

Bolt-Action Sniper Rifle [ 2016 ]

The SC-76 Thunderbolt Precision Rifle is a British sniper rifle offering in the proven 7.62x51mm NATO chambering.

Authored By: Staff Writer | Last Edited: 02/09/2023 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The SC-76 "Thunderbolt" is an original 7.62x51mm NATO bolt-action rifle offering promoted by Steel Core Designs of the United Kingdom. This long gun is marketed alongside the related SC-87 "Thunderbolt" which chambers the 0.338 Lapua Magnum NATO cartridge instead and features slightly different overall specs as a result. At its core, the SC-76 is a no-frills, all-in-one precision rifle system capable of handling the rigors of the modern battlefield through exceptional accuracy-at-range and a high degree of modularity.

The base arrangement of the rifle is conventional: the polymer-coated frame is hardened for field abuse with the forend slotted and sporting Picatinny accessory rails at the 12-, 3-, 6-, and 9-o'clock positions. The fluted barrel assembly protrudes a distance ahead of the forend and is capped by a slotted brake. Under the muzzle is a hinged, forward-folding bipod assembly. The pistol grip is ergonomic and angled to the rear with the oversized trigger loop (surrounding the two-stage trigger) ready to accept a gloved hand. The magazine well sits just ahead of the action and tucks nearly completely into the frame. With the extraction port sitting above the magazine well, the bolt handle can be found directly aft and within easy reach. Safety controls (2-point safety) are featured along the side of the frame - also within easy reach. The monopod-equipped (with its own quick release feature) shoulder stock extends aft and is adjustable (at the cheekrest, length, and butt pad height) while hinged to fold over the frame for ease-of-transport. The buttplate is adjustable to suit operator needs in-the-field.

Over the main part of the receiver is a section of Picatinny rail for the mounting of various optics including both day and night sets. The top rail measures a useful 600mm long overall.

The barrel assembly is of match-grade quality designed with heat dissipation in mind. Threading allows a suppressor to be fitted for clandestine operations. The standard muzzle brake is utilized to reduce the recoil of the full-powered cartridge - thus aiding accuracy.

The 7.62mm cartridges are fed from a spring-loaded 10-round magazine.

Overall weight of the complete system is 15.7lb. Overall length is 47" for the long-barreled form and 41" for the short-barreled form. Barrel lengths are 20" and 26", respectively. Both versions come in a black and dark earth finish with the aforementioned muzzle brake, bipod, a field tool kit, and field cleaning kit. Optics are optional as is a sling, sound suppressor, drag bag, and waterproof hard case.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Steel Core Designs - United Kingdom
Bangladesh; United Kingdom
Operators National flag of Bangladesh National flag of the United Kingdom
Service Year
United Kingdom
National Origin

Long-range accuracy / precision capable; suitable for sniping, particularly when equipped with sighting aids.

Supports silenced / suppressed actions - by way of silencer, suppressor, or subsonic ammunition - for clandestine operations.
Supports mounting of optics (scopes) to aid in accuracy for ranged fire.
Aiming can be aided by use of a bipod support assembly, either as an integral part of design or option.
Design offers mounting points for external, after-market hardware including laser aimers, flashlights, scopes, and grips.

1,190 mm
(46.85 inches)
Overall Length
660 mm
(25.98 inches)
Barrel Length
15.74 lb
(7.14 kg)
Empty Weight
Manually-Actuated Bolt-Action System.
Manually-actuated process of managing the bolt lever to eject spent cartridge case, clearing the breech, to introduce fresh catridge into the chamber.
7.62x51mm NATO
May not represent an exhuastive list; Calibers may be model-specific dependent; Always consult official manufacturer sources.
10-round detachable box magazine.
Day-Night Scopes / Optics Supported.

Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information.

3,280 feet
(1,000 meters | 1,093 yards)
Max Effective Range

SC-76 "Thunderbolt" - Base Series Designation.
SC-87 "Thunderbolt" - 0.338 Lapua Magnum NATO chambering; 27" overall length; 1:10 barrel twist; 17lb weight.

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Image of the Steel Core SC-76 Thunderbolt
Image form official Steel Core Designs marketing materials.

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