Picatinny rail consists of slots with 5.23 mm spaces between one another, which means that it can be used across its entire length. It is simple to mount and interchangeable – if something is made for a Picatinny rail, it will fit regardless of the manufacturer or manufacturing date. It is affordable, resilient and reliable – this is why it so commonly used by professionals and military. Because of all its great qualities, Picatinny rail has been dominating the rail market in the recent years.
Picatinny is a big step forward from the Weaver standard. Weaver has a few predesignated slots while Picatinny has slots all over its surface, allowing the device to be mounted wherever the user finds it fitting. Weaver's slot is 3.8 mm wide, which is why all mounts made for Picatinny will also fit on a Weaver rail while those made for Weaver will not fit on a Picatinny rail. This is one of the main reasons why Picatinny is a far better mounting solution.
Recknagel is currently the biggest manufacturer of mounts in Germany. Their Picatinny rails, known for great fit and finish, are mostly made of high-grade aluminium (a few are also made of steel), which is why they are very reliable. Screws are included. Currently, a common trend among rifle manufacturers is making receivers out of aluminum – mounting a Picatinny rail made of aluminum on one of those receivers is thus not problematic. Their products are marketed either under the name Recknagel or Era-Tac.
Merkel is a firearms manufacturer from Germany. Thuringia, Suhl. They manufacture bolt-action rifles, double rifles, drillings, and shotguns. During World War 1 many of the company's markets were lost, and they didn't recover until 1924. After the outbreak of World War 2, company started producting carbines, engines and equipment parts. Soon after the war ended, they started producing hunting rifles. In 1990, Merkel underwent some modernization and innovation, when Germany reunificated. Today, Merkel company is parented by the United Arab Emirates company, Caracal International.
Merkel SR1 uses a self-loading gas system with solid rotary bolt head, equipped with six locking lugs. Rifle has a free floating barrel. SR1 is available in standard or magnum calibers. Standard barrel length is 50 cm, magnum 51 cm. Magazine carries the capacity of 2 or 5 rounds. Standard caliber suits 5 rounds, magnum type 2 rounds. Cartridges are automatically ejected through semi-automatic ejector on the right side of the rifle. SR1 is chambered for: .223 Rem., 7x64, .308 Win., .30-06, 8x57IS, 9,3x62, .300 Win. Mag. SR 1 has four holes drilled for the purpose of mounting – two holes on the front side and two holes on the back side. Its action is round-shaped.
A: 21.9 mm
B: 88.5 mm
C: 15.4 mm
BHU: 0.5 mm
Remove all the stains (grease, oil etc.) from the rifle's receiver with a cleaning fluid (acetone). Once the surface is clean and dry, check whether the screws match the rail and the holes on the receiver. Make sure that the Picatinny rail is compatible with the the rifle by inspecting the mounting holes on both. Before mounting the rail permanently, apply a minimal amount of thread-locking fluid 278 or 648 on screws and contact surfaces. Be careful not to get the fluid in or near the mounting holes. Carefully clean the remaining excess fluid around the rail with a cleaning fluid. Using a torque driver, screw the screws appropriately (up to 2.2 Nm) – do not overtighten.
The product has a warranty period of 10 years.
|Mount series||ERA-TAC Picatinny Rails|
|Suitable for||A Square bolt action, Merkel SR1|
A, B and C markings refer to the distances between holes on the rail/mount. A is the distance between the front two holes on the rail/mount.
A, B and C markings refer to the distances between holes on the rail/mount. B is the distance between the holes in the middle (usually, that is the distance between the 2nd and 3rd hole on the rail/mount).
A, B and C markings refer to the distances between holes on the rail/mount. C is the distance between the rear two holes on the rail/mount.
BH stands for Bauhöhe (ger.) which means overall height. It is measured from the mounting surface of the rifle to the lower surface of the riflescope's tube.
Often, the elevation adjustment that the riflescope offers is not adequate to compensate for the bullet drop when shooting at long range. When the riflescope runs of out of elevation, a mount with an inclination is needed. 20 MOA is the most common inclination. With it, the user gains 58.2 cm / 100 m of additional elevation range when shooting at the range of 100 m. This is approx. 5.8 Mrad of elevation.