Eliphalet Remington founded Remington arms in 1816 – he made a flintlock rifle with a firing mechanism. Their products, rifles model 700 and 870, are among the best selling firearms of all time. Remington is also known for producing more cartridges than any other company in the world. Remington arms, currently a part of the Freedom group, is known as America's oldest gun maker. Furthermore, they still manufacture their original product firearms.
Remington 7400, a modernized version of an earlier semi-automatic rifle, was produced from 1981 to 2004. Its barrel length is 47 cm (carbine version) or 56 cm while its overall length is 110 cm. 7400 is chambered in 6mm Remington, .243 Winchester, .270 Winchester, 7 mm Remington Express, .280 Remington, .30-06 Springfield, .308 Winchester and .35 Whelen. Its receiver has four holes drilled and tapped for mounting options – there are two holes at the front and two at the rear. 7400's ejection port is located on the right side of the rifle. There are 3 variants – Carbine, Special Purpose, and Synthetic. Remington Model 4 is a deluxe version of 7400 and was made for the same calibers.
Remington 7600 is a series of centerfire, pump-action rifles with the barrel length of 56 cm and overall length of 108 cm. These rifles were introduced at the same time as Model 6 (a deluxe version of 7600). It has a detachable 4-round magazine. 7600 is chambered in .223 Remington, .243 Winchester, 6 mm Remington, .270 Winchester, .280 Remington, .30-06 Springfield, .308 Winchester, .35 Whelen, .35 Whelen (special) and .35 Remington. It has twin steel action bars and a rotary bolt lockup. The ejection port is on the right side. The barrel is free-floating. Action, slide release, and safety are based on model 870 pump-action rifle. The rifle's receiver is drilled and tapped – there are two holes on each mounting surface.
Rifles Remington 7400/7600 and 750 have actions of the same dimensions, which is why they share the same mounts.
A: 21.84 mm
B: 52.3 mm
C: 15.24 mm
BHU: 0 mm
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Fixed ring mounts cannot be detached from a rifle without tools. They come at an affordable price and offer high reliability. In most cases, they are not difficult to install on a rifle. Being fixed means that the user cannot quickly switch scopes, which limits the usability of a rifle. For this rifle, the fixed ring mounts are available in two options: one-piece or two-piece. In some cases, the buyer has an option of buying bases and rings or bases only.
In this category, there are mounts that can be removed without tools or other instruments; they can be removed with the use of bare hands. Usually, they do not offer full repeatability. The mounts in this category are advantageous in terms of transport – the riflescope and rifle can be transported individually. When reattaching the scope on the rifle, the point of impact shifts up to 10 cm on 100 m. Usually, they are marked with QR (quick release) or QD (quick detachable) abbreviations.
Detachable ring mounts are designed with simple metal levers which are used for quick removal from the rifle. The final position of the levers can usually be switched without changing the clamping force. This offers the possibility to adjust the position of the levers for a better visual appeal (both levers pointing in the same direction) once the mount is positioned and fixed on Remington 7400. Some detachable ring mounts such offer windage adjustment. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations. For this rifle, they are available in a two-piece version.
Detachable scope rail mounts for Remington 7400 are available both in a two-piece design. The lower part of the mount is fixed on the rifle's receiver while the upper part clamps on the scope rail. There are four different scope rail mounts available: LM rail, Zeiss ZM/VM rail, Swarovski SR rail and S&B Convex rail. Sometimes, they are designed with a windage adjustment – in this case, they are commonly more expensive. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations.
Repeatable mounts are the most sophisticated mounts available. They offer the possibility to remove the telescopic sight from the rifle and mount it back again without the need of re-zeroing. Repeatable detachable mounts are basically the same as detachable ring or scope rail mounts with a difference in mounting mechanism. Repeatable detachable mounts are designed with a precise clamping mechanism where the same clamping force is achieved in every attachment with the help of a lever – the same position of the mount is guaranteed. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations.
LM repeatable detachable rail mounts for Remington 7400
Zeiss ZM/VM repeatable detachable rail mounts for Remington 7400
Swarovski SR repeatable detachable rail mounts for Remington 7400
S&B Convex repeatable detachable rail mounts for Remington 7400
Pivot mounts fall into the category of repeatable detachable mounts. Detachment and re-attachment are very easy – the scope is inserted into the notch of the front base under a 90 degrees angle to the barrel. After that, the scope is pivoted until it is locked by the rear base. Pivot mounts are durable, elegant, light, and small. They are usually quite expensive in relation to other types of mounts. The installation on the rifle should be done by a skilled gunsmith. Most of the times, pivot mounts are higher than 14 mm.
Pivot ring mounts guarantee 100 % repeatability. They allow simple installation of multiple riflescopes or red dot sights on a single rifle.
Pivot rail mounts are available in either one-piece or two-piece versions. They allow simple installation of multiple riflescopes or red dot sights on a single rifle and guarantee 100 % repeatability. These mounts are almost the same as pivot mounts with rings but are intended for mounting of scopes with Zeiss ZM/VM rail, Swarovski SR rail, S&B Convex rail or traditional LM rail. Such setup tends to be a bit higher than with ring mounting but this is usually not a problem for scopes with a 50 or 56 mm objective lens. One-Piece Pivot mounts for rails clamp on the rail of the scope and provide a very reliable mounting solution.
The Picatinny rail is on a good way of becoming a global standard for mounting since it was invented in 1995. Developed on the Weaver template, the biggest advantage of the Picatinny rail is that it can be used throughout its entire length, unlike Weaver which has predesignated slots for mounting, limiting its usability and versatility. Ease of use and interchangeability are also its assets. A Picatinny rail has slots evenly placed, namely 5.23 mm from one another. The slots are 3 mm deep. Because of this, the mounting is identical on all firearms using the Picatinny standard. Picatinny rails are usually available in 0 MOA or 20 MOA inclinations. A Picatinny rail can accommodate all types of mounts, also those designed for the Weaver standard. Full-size mounts of this type are designed for mounting of modern optics such as thermal or digital devices.
Docter Sights are reflex sights with an array of application options. They are ideal for rifles, shotguns and for use on driven hunts. They can also be mounted on handguns and various other platforms. There are three available Docter sight mounting solutions: repeatable, fixed and detachable. Every time a Docter sight device is reattached to the rifle with a detachable mount, the rifle has to be re-zeroed. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations.