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Nosler M48 SA

The History of Nosler

Nosler is an American company, primarily known for their high-quality bullet production. It was established in 1948 by John Amos Nosler who got the inspiration for the company from a bad hunting experience in 1946 that led him to design a bullet that could expand efficiently at various impact velocities while maintaining its structure. The innovation resulted in the development of the first Partition bullet, tested in 1947. Following his experimentation with the design, John decided on a dual-core design which he started using in his personal hunting soon after.

By 1948, this led to the start of a Bullet Company in Ashland, Oregon. As the years progressed, the company expanded its production facilities, and by 1969, the Nosler Partition Bullet Co. transitioned its name to Nosler Bullets, Inc. Bullet production remained at the core of the company's business, leading to the introduction of several products like the Zipedo, Solid Base, and Ballistic Tip bullets. In 1990, another rebranding occurred, renaming the company to Nosler Inc. They also engaged in business collaborations, such as the partnership with Winchester in 1997 which led to the creation of Combined Technology® (CT®) bullets.

In 2004 the company created the Nosler Custom brand, and two years later, in 2006, they launched their first rifle, the Model 48. While the company primarily continued to put its focus on bullets production, their product line expanded significantly. As of 2023 their offer consists of various sorts of ammunition, bullets, cases, suppressors, firearms and more. Furthermore, in the recent years leading up to 2023, Nosler also added limited edition and semi-custom-built rifles to their offer.

Nosler M48 SA Rifle Review

The Nosler M48 SA is a bolt action, push feed rifle made by Nosler. The M48 model was first introduced by the company in 2006. It is available in ultra lightweight stock which is made of fully synthetic material with a sporter-style cheekpiece and a soft rubber recoil pad. The action houses a vent-body bolt with six shallow flutes and two locking lugs that lock up safely with the action housing.

The M48 SA employs a large claw extractor and plunger ejector system for round ejection. The free-floating barrels are hand-lapped and come at a length of 610 mm (24-inch). The rifle comes with a Timney adjustable trigger assembly set at a factory pull weight of approximately 1134 g (2.5 lbs). On the rear upper end of the receiver, behind the bolt handle, there is a two-position safety system that comes in the form of a lever. The forward position allows the rifle to fire, while the rear position sets it on "Safe". The bolt release knob is placed on the left side of the receiver and a top-loading 3- or 4-round internal box magazine accessible through the hinged floor plate.

Because of the popularity of the Remington 700 bases among users, the model 48 was designed to incorporate any two-piece model 700 bases so it allows users a variety of different scope mounts options to choose from.

Nosler M48 SA, chambered for 6.5 Creedmoor

Figure 1: Nosler M48 SA, chambered for 6.5 Creedmoor (Source: https://www.budsgunshop.com/product_info.php/products_id/112085/nosler+44548+m48+long-range+carbon+bolt+6.5+crd+26+4+1+carbon+fiber+mcs)

Nosler M48 SA Calibers

The rifle can be chambered for the following calibers:

6.5 Creedmoor

Nosler M48 SA Variants

Nosler 48 Mountain Carbon Green
Nosler 48 Mountain Carbon Grey
Nosler 48 Mountain Carbon Western
Nosler 48 Mountain Carbon Camo

The receiver of Nosler M48 SA comes with four drilled and tapped holes that can be used for scope mounting purposes. There are two holes in the front and two in the rear end of the receiver. Due to the popularity of the Remington 700 mounting surface, the Nosler M48 SA models have two-piece bases interchangeable with Remington 700 rifles.

The receiver of Nosler M48 SA, chambered for 6.5 Creedmoor

Figure 2: The receiver of Nosler M48 SA, chambered for 6.5 Creedmoor (Source: https://www.gunsinternational.com/guns-for-sale-online/rifles/nosler-custom-rifles/nosler---m48-western---6-5-creedmoor.cfm?gun_id=101373619)

Nosler M48 SA

A: 21.9 mm

B: ?

C: 15.3 mm

BHU: 2.9 mm

Ø: 6-48

R1: R51

R2: R17

Scope Mounts Interchangeable With Nosler M48 SA

Rifles That Have One-Piece Scope Mounts Interchangeable With Nosler M48 SA

All the rifles listed in the category below have one-piece mounts interchangeable with Nosler M48 SA. For one-piece mounts to fit on a rifle, mounting surfaces on these rifles must match in every dimension.

Rifles That Have Two-Piece Scope Mounts Interchangeable With Nosler M48 SA

All the rifles listed in the category below have two-piece mounts interchangeable with Nosler M48 SA. 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 have two-piece scope mounts interchangeable with Nosler M48 SA are:

Bergara B14 SA
Bergara Premier rifles – SA
Remington 722
Remington 40x SA
Bergara B14 LA
Bergara Premier rifles – LA
Remington 700 LA
Remington 700 SA
Remington 78 LA
Remington 78 SA
Remington 721
Remington 725
Remington 40x LA
Remington 40-XB
Haenel Jaeger 10
Sauer 100
Sauer 101
Mauser M18
Mauser M94 (1994)
Mauser 96 (Serial number < 12000)
Nosler M48 LA
Howa 1500 LA
Howa 1500 SA
Howa 1500 mini
CZ 600 Lux Long
CZ 600 Lux Medium
CZ 600 Range Long
CZ 600 Range Medium
CZ 550 Scandinavia
CZ 600 Lux Mini
CZ 600 Range Mini
Sabatti 870
Sabatti Tactical SA
Sabatti pre-2017 Compact Scout LA
Sabatti TLD
Sabatti Tactical EVO
Sabatti Rover Traqueur
McMillan G30 LA
McMillan G30 SA
BSA Repetierer
BRNO Scandinavian
Churchill Highlander
Howa 1500 LA
Howa 1500 SA
Howa 1500 Mini

Unfortunately, we were not able to find data on the exact B distance (center spread) between the mounting holes for Nosler M48 SA. Should you happen to own this rifle and would be willing to share the distance with us, we kindly ask you to contact us at info@optics-trade.eu

Thank you for your help!

Best Scope Mounts for Nosler M48 SA

Fixed Scope Mounts for Nosler M48 SA

If you are planning on mostly using one scope on the same rifle, this two-piece aluminum mounting solution manufactured by the American manufacturer Talley is one of the suitable options. Although the name suggests they are primarily suitable for Remington 700 rifles, they will fit perfectly on the Nosler M48 SA as the rifles have two-piece scope mounts interchangeable.

Detachable Repeatable Scope Mounts for Nosler M48 SA

This two-piece detachable mounting system manufactured by the Croatian company Rusan made of high-quality steel allows for swift changes between different optics and comes with a ten-year warranty. Is it a suitable scope mounting solution for your Nosler M48 SA.

Picatinny Rails for Nosler M48 SA

Picatinny rails are durable and resistant to recoil, providing many mounting options. This aluminum Picatinny from the American company Leupold has a ten-year warranty and is compatible with the Nosler M48 SA mounting surface.

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: info@optics-trade.eu

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VIDEO

Introduction

In recent years we can observe that a trend of Picatinny rail has become widespread and global. It is driven by the NATO standardized rails, more commonly known as the Picatinny rail standard. Picatinny rail being the New Jersey Arsenal that developed it in 1995.

These mounting options are revolutionary. The biggest and best advantage being that the Picatinny rail can be used its entire length and not bordered to a few pre-designed slots like for example the Weaver rail standard was before.

The other main advantage is the ease of use and interchangeability. If a product is meant for a Picatinny rail design it will fit all Picatinny-rails, no matter the manufacturer or date of production.

Picatinny/Weaver Rail

Picatinny Rail and Weaver rail profile

Design

The Picatinny rail is almost exclusively crafted from a single piece of metal (in some cases aluminum). In this manner, the axis of the Picatinny rail is perfectly straight and aligned with the axis of the firearm. Therefore the rifle scope which is mounted onto this kind of configuration is certainly aligned with the rifle / gun and the trajectory of the ammunition.

Weaver rail design on the other hand is usually manufactured in two separate pieces, greatly increasing the possibilities for the axis to be crooked, overlapping, and out of line.

It is always harder to align two separate pieces to a third line than it is to align one piece to another. In this way, the lapping of two mounting rings on a single-piece Picatinny rail is no longer required.

The single-piece rail will assure that both rings are perfectly aligned to each other and that no unwished stress is transferred to the riflescope.

Picatinny compare to Weaver Rail

The Picatinny rail itself is an evolutionary step forward from the older Weaver rail. The main difference between Picatinny rail and Weaver rail is the spacing of the slots. Picatinny rail design has them evenly placed exactly 5.23 mm from one slot to the other, 3 mm deep. For this reason, the mounting options are repeatable and the same as other firearms using the Picatinny rail standard.

Interchangeability was a major driving force in the development of the new standard as different NATO armies need to be compatible with each other.

Weaver rail has 3.8mm wide slots and these slots can be placed anywhere on the Weaver rail and in any number that the producer wished.

Advantages of Picatinny design

A big advantage for using the Picatinny rail design is the ever-present recoil stop. Furthermore, the manufacturing of the rail is not very technically demanding and can be done without the use of state-of-the-art machines which greatly reduces the cost of the finished product, making it very affordable.

The Picatinny rail is easy to mount and usually, this type of configuration does not transfer negative stresses and forces from the fired weapon to the rifle scope.

In addition, the Picatinny rail with its very long useable surface works well for mounting longer rifle scopes or to achieve optimum eye relief.

The durability and toughness are other big pluses for this solution.

Manufacturers of Popular Models

A majority of the Picatinny rings are fixed, but a number of best rated European manufacturers (EAW, MAK,..) have, in recent years, put a lot of effort into the development of detachable ring with100% repeatability, with which it becomes easy to remove the scope from the weapon without the use of tools.

No re-zeroing is needed with such mount options, but these models tend to be expensive.

Weaver and Picatinny Rings

Picatinny rail and weaver rail share one more thing. It is possible to use the Weaver ring and the Picatinny ring on the Picatinny-rails, but it is usually impossible to use the Picatinny ring on the Weaver base. The reason being the above-mentioned positioning and spacing of the slots.

Picatinny mounts have a 5mm recoil stop that goes into the rail slot and since
Weaver rail only has 3.8mm wide slots such rings do not fit on Weaver rails.

Due to this reason, the Picatinny-rails are popular and prevailing on the market in recent years and eventually, these options will completely oust the Weaver rail from the market.

Nosler M48 SA

The History of Nosler