Dumoulin Herstal Mauser Action

The History of Dumoulin Herstal SA

Dumoulin Herstal SA is a gun-making company located in Herstal, Belgium. They make hunting weapons and sporting guns. The company is known for mixing classic crafting methods with the newest high-precision machining technology. They offer Mauser-style actions, Express rifles, and various shotgun models. Customers can also ask for special designs or changes to their firearms according to their personal preferences. Dumoulin Herstal SA employs skilled artists to engrave intricate designs on their weapons.

The company is part of a bigger group called Groupe Herstal S.A. Way back in 1888, the Herstal group started by making rifles for the Belgian Army. By the 1890s, they were also selling guns to the end customers and expanded their offer to various civilian firearms. They teamed up with a famous gun designer, John Moses Browning, and together they produced some of the groundbreaking designs, including the first automatic handgun. Because of this partnership, the Browning brand became a part of FN Herstal's product line from 1907 onwards.

World Wars brought challenges for FN Herstal. During both wars, their operations were disrupted due to invasions and conflicts. After World War II, they expanded their range to include jet engines and later tried their hand at sports goods like surfboards and tennis rackets. However, the core of their business remained weapons.

During the 1980s, they faced financial struggles due to a weak defence market, so they sold non-gun businesses, focused on firearms, and bought the US Repeating Arms Co. in 1987. The company was sold to GIAT in 1990. Seven years later, the Walloon government acquired and renamed it Groupe Herstal. Not long after, they introduced a "smart gun" prototype.

Nowadays the Dumoulin is under the Herstal Group umbrella which encompasses two main divisions: FN Herstal for Defense and Security, and the Browning and Winchester brands for hunting and sports shooting, offering a wide range of firearms, ammo, and related gear globally.

Dumoulin Herstal Mauser Action Review

Dumoulin offers several base models of firearms that are built on their version of Mauser-style action such as Mousqueton, Herstal Safari, White Hunter or Diane. The actions are made of durable forged A-2 type steel and house a single-piece bolt with a claw-type extractor and strong dual-locking lugs. The bolt diameter primarily accepts cartridges for the .30-06 Spr. family but can be modified for other rounds. Dumoulin is famous for their trigger which is fully adjustable for sear engagement, over travel and creep. Both the trigger guard that is connected to a Ruger-style floorplate and the trigger itself are machined from steel.

The custom-designed bolt sleeve follows the FN style and features a three-position side-swing safety in the Winchester fashion. It blocks the bolt and prevents the trigger from being pulled. The steel floorplate covers an internal magazine that is a part of the action and can hold up to 5 rounds.

Despite being a Mauser-style action, the upper surface of the receiver is not the same as it is flat with threaded holes and differs from the one commonly found on other Mauser-style actions. The flat surface is drilled for 6-48 screws and the front, and the back end are the same height, meaning that the BHU is 0 mm.

Figure 1: Dumoulin Herstal Mauser Action, chambered for .30-06 Spr. (Source: https://www.sarcoinc.com/dumoulin-mauser-action/)

Dumoulin Herstal Mauser Calibers

Dumoulin Herstal SA does not list specific calibers for the rifles using Herstal Mauser action on their website. Users can choose between various calibers as the actions and rifles are highly customizable and available in both standard and magnum cartridges.

A: 21.8 mm

B: 99.1 mm

C: 12.7 mm

BHU: 0 mm

Ø: 6-48

R1: Flat

R2: Flat

Scope Mounts Interchangeable With Dumoulin Herstal Mauser Action

Rifles That Have One-Piece Scope Mounts Interchangeable With Dumoulin Herstal Mauser Action                                                                 

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 Dumoulin Herstal Mauser Action

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.

Currently, we cannot find any rifles that would match the exact dimensions of the Dumoulin Herstal Mauser Action mounting surface thus we are unable to provide you with a list of interchangeable scope mounts. Should you happen to own this rifle and would be willing to share with us more information regarding interchangeability, we kindly ask you to contact us at info@optics-trade.eu

Thank you for your help!

Best Scope Mounts for Dumoulin Herstal Mauser Action

Picatinny Rails for Dumoulin Herstal Mauser Action

There are not many scope mounts available for the Dumoulin Herstal Mauser Action, however, if you are looking for a reliable mounting solution that expands your optics mounting possibilities, we recommend this Picatinny rail manufactured by the American company EGW. It is made of high-quality aluminum.

Click here for EGW Picatinny rail

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 scope 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