ERA-TAC picatinny rail - Winchester SXR Vulcan

Introduction

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 ring mounts made for a Weaver rail will also fit on a Picatinny rail while ring mounts made specifically for a Picatinny rail will not fit on a Weaver 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 aluminum (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.

About the rifle

In 1855, Horace Smith, Daniel B. Wesson and C.C. Palmer founded Volcanic Repeating Arms Company. Oliver F. Winchester, a clothing manufacturer, was one of the shareholders. He soon became the biggest shareholder, and with time the company changed the name to Winchester Repeating Arms Company. The first firearm that they made was Model 1866 – it reached high popularity. Some of its best-sellers are Model 1894 (more than three million pieces were made) and, of course, Model 70 – the Rifleman's Rifle. Winchester has also been a very successful ammunition manufacturer throughout its existence. These are their most famous cartridges: .30 WCF .44-40 WCF, .50 BMG, .270 Win., .308 Win., .243 Win., .22 WMR and .300 Win. Mag. Today, Winchester is owned by Olin Corporation.

Winchester SXR Vulcan is a semiautomatic rifle. It is available in 7x64, .308 Win., 7.62x51, .300 Win. Mag. and .270 WSM. It is similar to Browning BAR, but there are some differences: the travel stop block is manufactured out of polymer instead of metal to reduce vibrations and shock levels, which increases the lifespan of the rifle. Another difference is that SXR Vulcan uses a flat bolt return spring (in contrast to Browning BAR which uses a round bolt return spring). The standard box magazine holds 2 rounds (+1 in the chamber), while extended magazine holds 5 rounds (+1, standard caliber) or 4 rounds (+1, magnum). The action is push-feed. There are 7 locking lugs on the bolt. For mounting purposes, there are four holes on the receiver of the rifle, 2 at the front and two at the rear.

Rifles Benelli Argo, Browning BAR, Browning Acera, Browning Maral, Winchester SXR Vulcan and Fabarm Iris have actions of the same dimensions, which is why they share the same mounts.

A: 12.7 mm
B: 81 mm
C: 12.7 mm
BHU: 0 mm
Fi: 6-48
R1: R18
R2: R18

Mounting instructions

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 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.

Warranty

The product has a warranty period of 10 years.