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Scope mounts for Remington 40-XB

About the Company

The company was founded in 1816 when Eliphalet Remington II handcrafted his first rifle in his father’s forge and with the help of a local gunsmith managed to turn it into a simple flintlock rifle for his personal use. Taking second place in a shooting contest, Remington's rifle attracted a great amount of attention and shortly after, first orders started to come in.

The production line was moved to the Erie Canal which is nowadays known as the present location of the Remington factory in Ilion, New York. Early on, the company manufactured around 5000 pieces of M1841 Mississippi rifles to be used in the U.S. army additionally receiving a large government order of 1000 Jenks loading carbines. A few years after establishing its first armoury in 1848, three of the founder's sons joined the company and renamed it, E. Remington & Sons. The following years brought the outbreak of the Civil War in 1861 and at that point the company was supplying the Federal Army and Navy with arms such as pistols, carbines, rifles, and muskets, increasing their production rate significantly. Eliphalet Remington passed away in the same year, leaving the business up to his three sons. The army-oriented production shifted in direction again at the end of the War in 1865 when the company started to fabricate different firearms for civilian hunting and shooting sports. In 1871, the company established its ammunition production under the name Remington Ammunition Works. They were producing centrefire ammunition for pistols, shotguns, and rifles. Two years later, after gaining the trust of inventors Christopher Sholes and Carlos Glidden, the company even managed to produce its first fully functional typewriter in Ilion, New York.

In the following years, the company presented some of its early weapon models such as the first American autoloader (later known as M11), Model 8, and Model 10. At the beginning of World War I, Remington enlarged their facilities, expanding out to four locations, increasing arms and ammunition production rate once again. Signal guns, autoloading pistols such as Model 51, rifles and machine guns were swiftly being produced in great numbers. In addition, they entered a cutlery business during the war period, producing roughly 2.500.000 knives annually by the year 1926. Remington was revolutionizing its products every step of the way. Being the first to introduce the concept of game load ammunition, they took over the shotshell industry by storm. Ammunition production increased again in World War II when the company expanded its production to 7 more locations. Some of the most recognizable weapon models were presented during this period such as Model 03A4 or M1903A3 Springfield which was a renewed and simplified version of 1903 Springfield.

In the years after the war, they released the Model 870 'Wingmaster’ shotgun which became the world’s bestseller at that point, Nylon 66 autoloading .22 rifle, Model 700 bolt-action rifle, Model 1100 and an M24 sniper rifle that was regularly used as a standardized US army sniper rifle until 2010. Meanwhile, they also managed to stay operative in the knife making business. Ten years after building a new ammunition plant in Lonoke, Ark., DuPont purchased the remaining Remington shares and became the majority owner of the company, however, they later sold the assets to RACI Acquisitions in New York. In 2011 they re-focused on the production of handguns, launching the R1 1911 semi-automatic pistol. Another renowned weapon, namely the Model 783 bolt-action rifle was released two years later, in 2013.

Today, Remington is known as the oldest gun manufacturer in America, celebrating a more than 200-year-old history of diligence and quality.

About the Rifle

Remington 40-XB

Remington 40-XB is a bolt action rifle introduced in 1955. Some versions were only produced as a single-shot weapon, however, Remington also manufactured repeating variants with the internal magazine.

The rifle features a heavy free-floating stainless-steel barrel and blued steel receiver that is drilled and tapped for mounts. The dual locking lugs lock up safely with the housing of the receiver. The trigger is externally adjustable and smooth to operate. There is a two-position safety catch placed on the right upper side of the receiver, next to a bolt handle.

The possible barrel length for Remington 40-XB is 692 mm (27¼-inch).

Remington 40-XB, chambered for .308 Win.

Figure 1: Remington 40-XB, chambered for .308 Win. (Source: https://www.gunsinternational.com/guns-for-sale-online/shotguns/competition-shotguns/remington-model-40-xb-rangemaster-in--308-win.cfm?gun_id=100488374#lg-1)

Remington 40-XB can be chambered for the following calibres:

  • .22 BR Rem.

  • .222 Rem.

  • .223 Rem.

  • .22-250 Rem.

  • .220 Swift

  • 6mm BR Rem.

  • .243 Win.

  • 6mm Rem.

  • .25-06 Rem.

  • .260 Rem.

  • 7mm BR Rem.

  • 7mm Rem. Mag.

  • 7mm RUM

  • 7mm STW 

  • .308 Win.

  • .30-06 Spr.

  • .300 Win. Mag.

  • .300 RUM  

The rifle is available in the following variants:

  • Remington 40-XB Rangemaster Rimfire

  • Remington 40-XBRangemaster Rimfire Repeater

All Remington 40-XB receivers come with four holes for mounting purposes, two on the front and two on the rear mounting surface.

The receiver of Remington 40-XB, chambered for .22-250 Rem.

Figure 2: The receiver of Remington 40-XB, chambered for .22-250 Rem. (Source: https://hendershots.net/product/remington-40-xb-ks-rangemaster-22250-rem/#&gid=1&pid=5)

A: 21.9 mm

B: 92.3 mm

C: 15.3 mm

BHU:  2.9 mm

Ø: 6-48

R1: R51

R2: R17

Which Rifles Have Interchangeable Mounts

Two-piece mounts

All the rifles listed in the category below have two-piece mounts interchangeable with Remington 40-XB. To meet interchangeability conditions, two-piece mounts must match in all dimensions except the B distance. B distance can vary because two-piece mounts can be installed and adjusted closer or further apart. Rifles that meet such criteria are:

  • Bergara B14 SA

  • Bergara Premier rifles – SA

  • Remington 700 SA

  • Remington 78 SA

  • Remington 78 LA

  • Remington 40x SA

  • Remington 722

  • Bergara B14 LA

  • Bergara Premier rifles – LA

  • Remington 700 LA

  • Remington 721

  • Remington 725

  • Remington 40x LA

  • Haenel Jaeger 10

  • Sauer 100

  • Sauer 101

  • Mauser M18

  • Mauser M94

  • Mauser 96 (Serial number < 12000)

  • Howa 1500 LA

  • Howa 1500 SA

  • Howa 1500 mini

  • Mauser M12 (2019-onward)

One-piece mounts

All the rifles listed in the category below have one-piece mounts interchangeable with Remington 40-XB. For one-piece mounts to fit on a rifle, mounting surfaces on these rifles must match in every dimension. Rifles that share the same dimensions and mounting surface with Remington 40-XB are:

  • Bergara B14 SA

  • Bergara Premier rifles – SA

  • Remington 700 SA

  • Remington 722

  • Remington 78 SA

  • Remington 40x SA

Our Recommendations for Mounts

Detachable Repeatable Mounts

Along with their practicality, detachable mounts also allow for dependable repeatability and recoil resistance. If you are in search of such a mounting solution, we recommend this swing mount manufactured by the German company EAW. It is made of high-quality steel and comes with a thirty-year warranty.

Help Us Build Our Riflescope Mounts Database

If you happen to own this or any other rifle, we would appreciate it if you could help us expand our database by sending us some photos of the rifle receiver (the bare mounting surface of the rifle without the mounts installed). For your help, our company offers a fair return in terms of practical rewards.

Please send us an email for more information. You can contact us here: [email protected]

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