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Merkel SR 1 Basic

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One Piece Pivot Mounts

About the Merkel

Affected by the industrial revolution, the beginnings of the Merkel Jagd- und Sportwaffen GmbH began in 1898 when three brothers Albert Oskar, Gebhard and Karl Paul Merkel created a company under the name Gebrüder Merkel. They started manufacturing firearms in 1905 as a relatively small firm and remained like that during the war as the total number of employees hardly ever exceeded 350. Mainly focusing on export, the company even lost some of its foreign markets, hence pushing the innovativeness in the forefront of their marketing strategy which is to this day notable in their workshop diaries from the time. As the hunting rifles production suffered during the war, they struggled for many years after it ended. However, in the following years, their aesthetically built hunting rifles were again gradually beginning to be sought after in 28 foreign countries. In 1924, one of the most unique and recognizable models – Merkel 303 was presented.

Two years after registering a trademark and gaining rights to the use of the term 'Bock' (over-and-under), Gebhard Merkel passed away in 1933, missing a chance of witnessing the ‘Grand Prix’ prize being awarded to the company in 1937 which increased the export business significantly. In the following year, the management was handed over to Adolf Schade and Ernst Merkel. Their rifles were mostly sold to the upper class - diplomats, famous hunters and industrialists became fond of the company's meticulousness and consistent quality which further broadened Merkel's reputation.

During the Second World War, the market network, consisting of many foreign countries, shrivelled little by little. The war industry was once again preventing the company to focus on what they had been known to do best, subordinating the production of hunting rifles to military weapons manufacturing. At this point, they started adjusting their production accordingly to the market demand, supplying other companies with what the industry needed the most - from carburettor to carbine and rangefinder parts.

Despite the war physically destroying or dismantling a large portion of German factories, Merkel was able to escape such fate, most likely due to its good reputation. At the end of 1945, they restarted the production of hunting rifles, however, due to the Soviet occupation, Merkel successors lost all rights to the company which now operated under the new state of the German Democratic Republic. The Soviets familiarized the company with the two most powerful and influential men at that time - Dwight D. Eisenhower and Nikita S. Chruschtschow which resulted in the first man in space – Juri Gagarin – to be given a Merkel Drilling. Consequently, the socialist regime exploited the company’s notoriety, focusing again on supplying the richest and most prominent people such as Josip Broz Tito, Gamal Abdel Nasser and even Mao Tse Tung. Up until 1987, the production of over-and-under rifles reached 150.000 pieces and the company additionally had a breakthrough in the sport shooting market.

After the fall of the Berlin Wall in 1989, they struggled with outdated technology, however, foreign investors helped significantly with the expansion of the company which resulted in the development of some of the new products such as HELIX, SR1, K5 and SxS series. Up to this day, the company preserved the tradition of the high-quality, handcrafted character of their rifles combined with a vibrant history that laid the foundation for one of the greatest firearm companies of the 21st century.

Merkel SR1 (Basic) Rifle Review

Merkel SR1 is a push feed semiautomatic rifle with a self-loading gas pressure system and intelligent release which prevents the charging handle to spring forwards when feeding the cartridge for the first time. The rifle features Duraluminium housing with a solid rotary bolt head that locks the six locking lugs into the barrel for extra safety.

There are some minor differences between SR1 Basic and SR1 Standard models. The SR1 Standard comes with options of changing stock dimensions and light dismantling which are not available on SR1 Basic. The wood class is different too – SR1 Basic is only available in wood class 1. Although redesigned, SR1 Basic shares the same mounting surface with the Heckler & Koch 2000 and 2000+ models since H&K company sold their original designs of those rifles to the Merkel once they ended their production. SR1 Basic and SR1 Standard, however, do not share the same mounting surface. Basic variant features five holes for mounting purposes and has a longer B distance, whereas SR1 Standard only has four mounting holes and a shorter B distance. Unfortunately, this might cause some confusion among the users as one would expect interchangeability not to be an issue within what is essentially the same rifle series.

A fast-rolling shutter and a free-floating barrel made of high strength steel allow for swift, minimal effort shooting. The detachable magazine can hold 2 or 5 rounds. The safety catch that is activated by pushing it to the right is positioned at the rear of the trigger guard and is easily reachable.

Merkel SR1 Basic is available in standard or magnum calibres.

Possible barrel lengths for Merkel SR1 are 500 mm (19.7 -inch) and 510 mm (20-inch).

Merkel SR1 Basic

Figure 1: Merkel SR1 asic, chambered for 9,3x62mm (Source: https://www.progun.de/marketplace/~schutzwesten_und_tracker/3qg2zvs7_merkel_merkel_selbstladebuechse_sr1_basic_suppressor_cal93x62.html)

Merkel SR1 Basic can be chambered for the following calibres:

  • .223 Rem.

  • .270 Win.

  • 7x64

  • .308 Win.

  • .30-06 Spr.

  • .300 Win. Mag.

  • 8x57 JS

  • 9.3x62

Calibre choice depends on the variant.

SR1 rifles are available in the following variants:

  • SR1 Basic
  • SR1 Basic Suppressor

All Merkel SR1 Basic receivers come with five holes for mounting purposes, two on the front and three on the rear of the receiver. 

Merkel SR1 Basic

Figure 2: The receiver of Merkel SR1 Basic, chambered for .30-06 Spr. (Source: https://www.youtube.com/watch?v=DJHR7H0dRC4)

A: 21.9 mm

B: 98.5 mm

C: 2x15.4 mm

BHU: 0 mm

Ø: 6-48

R1: 17.3

R2: 17.3

Which Rifles have interchangeable Mounts

Two-piece mounts

For two-piece mounts to fit on a rifle, mounting surfaces 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 and have interchangeable two-piece mounts with Merkel SR1 Basic are:

  • Heckler & Koch SLB 2000
  • Heckler & Koch SLB 2000 +
  • Heckler & Koch SLB 2000 Light

One-piece mounts

All Merkel SR1 Basic receivers come with five holes for mounting purposes, two on the front and three on the rear mounting surface. For one-piece mounts to fit on a rifle, mounting surfaces on these rifles must match in every dimension. Rifles listed in the category below have interchangeable one-piece mounts with the SR1 Basic variant.

  • Heckler & Koch SLB 2000
  • Heckler & Koch SLB 2000 +
  • Heckler & Koch SLB 2000 Light

Our Recommendations for Mounts

Fixed Mounts

These steel made MAKfix rings with bases match all necessary receiver dimensions of H&K SLB 2000 and Merkel SR1 Basic and are, therefore, interchangeable between the mentioned rifles. They present a functional and reliable solution for your Merkel SR1 Basic.

Detachable Repeatable Mounts

This repeatable two-piece pivot mounting solution made by the German company Recknagel is quick and easy to install and take off whenever you want to use a different scope. It is made of steel and comes with a 30-year warranty.

Picatinny Rails

When purchasing a Picatinny rail, the receiver dimensions should always match the ones on the rail itself. This ERA-TAC Picatinny mounting solution is manufactured in Germany, made of light aluminium, and comes with included screws.

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

Pivot mounts are a special kind of repeatable mounts that are especially popular in Europe and mainly produced by European manufacturers. Most notable among them are German Companies like EAW (Ernst Apel Wurzburg), Recknagel, Henneberger and MAK. These Companies were also among the first to produce mounts of this type. Non German companies like Rusan are also following this trend.

Main benefits of pivot mounts, or swing mounts as they are sometimes called are:

  • 100% repeatability,
  • very quick and easy detaching and reattaching,
  • extremely durable; most mounts of this kind are tested on 10000 or more reattachments,
  • size and weight; light and small, elegant.

There are also some minor weaknesses that such mounts posses and they are: they are usually more expensive than other types of mounts, the installation on the rifle should be done by a skilled gunsmith and most of these mounts are higher than 14 mm.

A distinct feature of pivot/swing mounts is the way the scope attaches to the rifle. The front foot of the mount on the scope is inserted in the front base under a 90 degrees angle to the barrel. Then the entire scope is pivoted around the front base until it is locked into position by the rear base.

Pivot mounts of all types enable windage correction on the rear base at the time of the mounts installation. There are three main types of pivot mounts which are distinguished by the type of the rear base:

  • EAW style rear base: produced by EAW and Rusan,
  • Dovetail rail base: produced by Recknagel, Henneberger, MAK and others.
  • Leupold type rear base