Optics – Barrett Firearms

The Barrett M98B, chambered in .338 Lapua Magnum and equipped with a factory-mounted Leupold Mark 4 LR/T 4.5-14x50mm riflescope, represents a purpose-built long-range precision platform for the American shooter who demands consistent accuracy at extended distances. Whether you are engaging steel targets at 1,500 yards on a private range in Texas, conducting load development for a precision rifle competition in Arizona, or establishing a reliable field rifle for long-range hunting in the Mountain West, this combination of Barrett engineering and Leupold optics delivers repeatable performance without unnecessary complexity. For the licensed FFL retailer serving U.S. customers, this is a system designed for the disciplined marksman who prioritizes mechanical precision over marketing hype.

Product Overview and Intended Audience

The Barrett M98B with a 27-inch fluted barrel and factory-mounted Leupold Mark 4 LR/T scope is a bolt-action precision rifle system intended for long-range target shooting, precision rifle competitions, and specialized hunting applications where .338 Lapua Magnum ballistics are required. This is not a home defense firearm, nor is it suited for concealed carry or general-purpose hunting of small game. The intended user is the experienced shooter who understands external ballistics, wind reading, and the practical requirements of operating a magnum cartridge at distance. Collectors will appreciate the Barrett name and the integration of a military-grade Leupold optic, but this rifle is built for active use on the range or in the field.

Key Specifications

• Caliber: .338 Lapua Magnum
• Barrel Length: 27 inches, fluted stainless steel
• Barrel Twist Rate: 1:10 inches (standard for .338 Lapua, stabilizing 250-300 grain projectiles)
• Magazine Capacity: 5 rounds (detachable box magazine)
• Overall Length: Approximately 50.5 inches (depending on muzzle device configuration)
• Weight: Approximately 13.5 pounds (unloaded, without scope); approximately 15.5 pounds with mounted Leupold Mark 4
• Stock: Adjustable length of pull and cheek rest; aluminum chassis with polymer furniture
• Finish: Black matte anodized aluminum receiver and handguard; stainless steel barrel with matte bead blast finish
• Sights: None; factory-mounted Leupold Mark 4 LR/T 4.5-14x50mm riflescope with Mil-dot reticle
• Trigger: Two-stage adjustable trigger (factory set at approximately 3.5 pounds)
• Muzzle: Threaded 3/4-24 with factory-installed muzzle brake
• Action: Bolt-action, three-lug rotating bolt with 60-degree bolt lift

Feature Deep-Dive

The 27-inch fluted barrel is a defining feature of this Barrett M98B configuration. The fluting reduces overall weight without sacrificing rigidity, allowing the barrel to cool more efficiently between strings of fire. This is particularly relevant for shooters who engage in extended range sessions or competition stages requiring multiple shots on target. The stainless steel construction resists corrosion in humid environments, while the matte finish minimizes glare that could compromise position concealment. The 1:10 twist rate is optimized for the heavy-for-caliber bullets commonly used in long-range precision work, such as the 300-grain Sierra MatchKing or Hornady ELD-Match projectiles.

The factory-mounted Leupold Mark 4 LR/T 4.5-14x50mm scope is not an afterthought. Leupold’s Mark 4 series has seen extensive use by U.S. military and law enforcement precision rifle units, and this model provides a generous 50mm objective lens for light gathering in low-light conditions. The 4.5-14x magnification range is practical for engaging targets from 100 to 1,500 yards, and the Mil-dot reticle allows for ranging and holdover corrections without dialing. The scope is mounted using Leupold Mark 4 steel rings on a Picatinny rail integral to the receiver, ensuring a solid interface that maintains zero under recoil. For the shooter who prefers to run their own optic, the scope can be removed, but this factory-mounted configuration saves time and ensures proper alignment.

The Barrett M98B action is built around a three-lug bolt with a 60-degree lift, which provides ample clearance for scope clearance while maintaining a short bolt throw. The bolt features a fluted body for reduced friction and debris clearance. The receiver is machined from 7075-T6 aluminum, hard-coat anodized for wear resistance. The barrel is threaded into the receiver using a precision interference fit, not a simple screw-on arrangement, which contributes to the rifle’s consistent accuracy. Barrett’s quality control includes proof testing and accuracy verification with match ammunition before the rifle leaves the factory.

The stock system on the M98B is a full-length aluminum chassis with a folding stock mechanism. The folding stock reduces overall length for transport and storage, and the latch is robust enough to maintain zero when deployed. The adjustable length of pull and cheek rest allow the shooter to achieve a consistent cheek weld, which is critical for repeatable shot placement. The forend includes M-Lok slots for attaching bipods, sling mounts, or additional rail sections. The pistol grip is interchangeable with AR-15 style grips, offering customization for hand size and grip angle preference.

The detachable box magazine holds five rounds of .338 Lapua Magnum and is constructed from steel with a polymer floorplate. The magazine release is located at the front of the trigger guard for intuitive operation. The two-stage trigger is adjustable for both pull weight and overtravel, though most shooters will find the factory setting suitable for precision work. The muzzle brake is effective at reducing felt recoil to approximately that of a .308 Winchester, allowing the shooter to spot impacts through the scope. The brake also reduces muzzle rise, facilitating faster follow-up shots when necessary.

Barrett includes a hard case with foam cutouts for the rifle, scope, and one magazine. The case is airline-compliant for travel to matches or hunting destinations. The rifle ships with a manual, a cable lock, and Barrett’s standard warranty documentation. The Leupold Mark 4 scope is covered by Leupold’s lifetime guarantee, which is separate from Barrett’s warranty but equally comprehensive.

Ideal Use Cases

• Long-Range Target Shooting: The .338 Lapua Magnum cartridge, combined with a 27-inch barrel and quality optics, delivers consistent sub-MOA accuracy at distances beyond 1,000 yards. This rifle is suited for shooters who routinely engage steel targets at 1,200 to 1,600 yards.
• Precision Rifle Competitions: Matches such as PRS, NRL Hunter, or F-Class allow .338 Lapua Magnum in certain divisions. The M98B’s adjustable stock and trigger, along with the Leupold scope, provide the adjustability needed for positional shooting.
• Long-Range Hunting: For experienced hunters pursuing game at extended distances, the .338 Lapua offers sufficient energy for elk, moose, or large African plains game. The rifle’s weight and length are manageable for spot-and-stalk hunting with a vehicle or pack support.
• Collectors and Enthusiasts: Barrett Firearms is a U.S. manufacturer known for the M82 and M107 anti-materiel rifles. The M98B represents their entry into precision bolt-action rifles, and this factory-scoped configuration is a complete system from a reputable brand.

Compatibility Notes

• Ammunition: The .338 Lapua Magnum chamber accepts factory loads from manufacturers including Federal, Hornady, Lapua, Norma, and Black Hills. Handloaders should adhere to published data for the 1:10 twist barrel. Avoid using .338 Lapua Magnum ammunition loaded with bullets heavier than 300 grains without verifying barrel twist compatibility.
• Holsters: Not applicable. This is a long-range precision rifle, not a handgun. For transport, use the included hard case or a padded rifle case.
• Magazines: Barrett-manufactured magazines are recommended. Aftermarket magazines are not widely available for the M98B. Extra magazines can be purchased through Barrett or authorized dealers.
• Accessories: The M-Lok forend accepts bipods, sling mounts, and rail sections. Recommended bipods include Harris S-BRM or Atlas BT10. The threaded muzzle accepts suppressors with 3/4-24 threads, though suppressor use may require a different muzzle brake or direct-thread adapter. Scope rings are specific to the Picatinny rail; the included Leupold rings are sufficient for most applications.
• Optics: If replacing the Leupold Mark 4, ensure the replacement scope has sufficient eye relief for the .338 Lapua’s recoil. The integral Picatinny rail accepts standard 30mm or 34mm rings.

Frequently Asked Questions

Q: Can this rifle be shipped to my home address in the United States?
A: No. As a licensed FFL retailer, we ship this rifle to a Federal Firearms License (FFL) holder in your state, such as a local gun shop, pawn shop, or shooting range. You must arrange the transfer with the receiving FFL before we ship. We do not ship directly to residential addresses for firearms. Standard shipping rates apply within the contiguous U.S.; Alaska and Hawaii may incur additional fees.

Q: How does the FFL transfer process work?
A: After placing your order, you will receive an email requesting the contact information for your chosen FFL dealer. Your dealer must send us a copy of their valid FFL license via email or fax. Once we verify the license, we ship the rifle to them. The dealer will then contact you to complete the ATF Form 4473 and perform a NICS background check. Transfer fees are set by the receiving FFL and are not included in our price. We recommend confirming your dealer’s willingness to receive transfers before ordering.

Q: What ammunition is compatible with this Barrett M98B?
A: This rifle is chambered for .338 Lapua Magnum. Use only factory-loaded ammunition or handloads that meet SAAMI pressure specifications. The 1:10 twist barrel stabilizes bullets from 250 to 300 grains. Heavier bullets may not stabilize and could cause accuracy issues or pressure signs. We recommend starting with factory match ammunition from Federal Premium, Hornady, or Lapua for initial accuracy testing.

Q: What warranty covers this rifle and scope?
A: Barrett Firearms provides a limited lifetime warranty to the original owner for defects in materials and workmanship. The warranty does not cover misuse, neglect, or normal wear. The Leupold Mark 4 scope is covered by Leupold’s lifetime guarantee, which is transferable and