Winchester M70 SA

About the Winchester

In the year 1866, more than 150 years ago, Oliver Winchester left a significant mark on the history of rifle-making when he founded the Winchester Repeating Arms Company with the intention of producing exceptional guns and ammunition. Oliver Winchester, “a man of vision and influence,” as many considered him, fulfilled his intention and built an industrial empire around the lever-action rifle. Sporting a polished brass receiver, the Model 1866 “Yellow Boy” lever-action rifle was the first gun to bear the Winchester name. Fast forward a few years, to 1880, Oliver Winchester died at age 70, but his legacy remained. The Winchester Model 1892 lever-action rifle soon proved itself to be the moviemaker’s favorite, while revolvers chambered in .38-40 Win., .44-40 Win. and .45 Colt were also well received.

Winchester helped pave the way for modern-day rifle manufacturers, and their decades of experience and craftsmanship can also be seen in their high-quality ammunition. They offer a variety of ammo for handguns, rifles, shotguns, and rimfire rifles. Today, the Winchester brand is owned by the Olin Corporation and made up of numerous members who are devoted to the maintenance, collecting, and learning about Winchester rifles and related products, as well as the role these products held in shaping the history of America’s firearms.

Winchester Model 70 SA Rifle Review

Winchester Model 70 is a bolt-action repeating rifle first introduced in 1936. It was the successor to the Model 54 and achieved great success in the USA. It is still often called “The Rifleman’s rifle”, and in 1999 it was named the “bolt-action rifle of the century” by Shooting Times magazine.

In the years since its release, Model 70 has gone through a lot of changes and has been produced in 4 different versions. The first version, known as the pre-1964 version, was made from 1936 to 1964. It featured a controlled-feed action with two locking lugs, a steel receiver and had a premium price tag. The second version was made from 1964 to 1992 and is known as the post-1964 version. It was a redesign aimed at reducing costs to produce a more budget-friendly line of rifles but ended up being considered a disappointment by rifle enthusiasts because of its push-feed action, overall simplified design, and feeding issues. The third version of M70 was introduced in 1992 and in many ways represented a return to the pre-1964 version, except that it came equipped with a controlled round push feed (or CRPF) action. At the same time, they also released M70 Classic, which was in essence a reintroduction of the pre-1964 version (this one had a controlled-feed action). And in 2007, yet another, improved version of the Winchester M70 was introduced. This version has a lighter, but at the same time stronger action than the pre-1964 version because of CNC machining used to create the steel receiver. It still features a controlled-feed action and a three-position safety, which enables fire when pushed forward and locks the rifle when pushed backward, while the middle position enables the chamber to be unloaded, locks the trigger, but at the same time allows bolt movement.

Up to 1984, one disadvantage of the M70 was that it was made in only one receiver length, no matter the caliber, which meant that the receiver was too long for some calibers to work as smoothly as theyshould. They fixed this by introducing shorter actions, so that now there are 5 action lengths available: WSSM, WSM, short, long and extra-long.

Winchester Model 70 short action

Figure 1: Winchester Model 70 short action. Source: https://horstauction.hibid.com/lot/74333040/winchester-model-70-sa/?q=&ref=catalog

Winchester Model 70 SA is chambered for the following calibers:

.204 Ruger
.223 Rem.
.22-250 Rem.
.243 Win.
6.5mm Creedmoor
6.5 PRC
.308 Win.

Winchester Model 70 SA is available in the following variants:

Super Grade
Featherweight
Featherweight Compact
Alaskan
Safari Express
Extreme Hunter – Strata MB
Long Range MB
Maple
Super Grade French Walnut
Extreme – True Timber VSX MB
Extreme Weather MB
Tungsten MB
Extreme Weather SS
Ultimate Shadow Hunter
Ultimate Shadow
Ultimate Shadow Hunter SS
Ultimate Shadow SS
Ultimate Shadow Hunter – Mossy Oak Break-Up Infinity
Ultimate Shadow Hunter SS – Mossy Oak Break-Up Infinity
75th Anniversary Super Grade
Alaskan Stainless Laminate
Brown Laminated Coyote Blued
Brown Laminated Coyote Stainless
Classic Camo Ultimate Shadow, Blued
150TH Commemorative
Laminated WSM
Classic Stainless
Classic Super Grade III
Classic Ultimate Shadow, Blued
Classic Ultimate Shadow, Stainless
Coyote Varmint Stainless Suppressor Ready
Coyote Varmint Suppressor Ready
Featherweight Grade III
Jack O’Conner Custom Tribute
Jack O’Conner Tribute
Stainless Featherweight
Stealth
Super Grade Special Limited Edition
Black Shadow
Coyote Light, Blued
Coyote Light, Stainless
Featherweight Left-Hand
Featherweight Deluxe
Featherweight Stainless
Laminated, Coyote OutbackTM, Stainless
Coyote Brown, Stainless
Laminated, Coyote Gray, Stainless
Pro Shadow Blued
Pro Shadow Stainless
Shadow Elite, Camo, Stainless
Shadow Elite, Stainless
Sporter Deluxe
Sporter III
Sporter III Left-Hand
Stealth II
Super Grade Centennial 30-06
Super Grade III, RMEF
Super Shadow, Blued
Compact
Sporter RMEF
Coyote Light
Featherweight High Grade Maple
Coyote Light Suppressor Ready
Featherweight Stainless
Featherweight Stainless, Dark Maple
Super Grade Stainless
Sporter

Winchester M70 SA features four holes on the receiver for mounting purposes.

Winchester M70 SA receiver

Figure 2: Winchester M70 SA receiver.

Skica dimenzij

Figure 3: Winchester M70 SA receiver.

A: 21.84 mm

B: 82.5 mm

C: 21.84 mm

BHU: 3.4 mm

Ø: 6-48

R1: R34

R2: R17

Which Rifles Have Interchangeable Mounts

Two-piece mounts

For two-piece mounts to be interchangeable the mounting surfaces of the rifles must match in every dimension except the B dimension which can vary. This is because the distance between the two pieces of the mount is not fixed. Rifles that have two-piece mounts interchangeable with Winchester Model 70 SA are the following:

Winchester Model 70 LA
Winchester Model 70 WSM
Winchester M70 Extra Long

One-piece mounts

The necessary condition for rifles to have one-piece mounts interchangeable is that the mounting surfaces of these rifles match in every dimension. Rifles that have one-piece mounts interchangeable with Winchester Model 70 SA are the following:

none

Our Recommendations for Mounts

Fixed mounts

For a fixed mount, we recommend these high-quality steel MAKfix Rings which are reliable and come with a 30-year warranty.

Detachable repeatable mounts

We recommend this repeatable MAKlassic 2-piece Pivot Mount both for its quality and reliability.

Picatinny rails

This Picatinny rail from Contessa brings great quality at a relatively low price.

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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Rusan Pivot mount for Winchester 70, 40 mm

Rusan Pivot Mount for Winchester 70 Standard, 770, Target (XTR), 40 mm

As low as $259.00

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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

Different Types of Pivot Mounts

Winchester M70 SA

About the Winchester

Winchester Model 70 SA Rifle Review

Winchester Model 70 SA is chambered for the following calibers:

Winchester Model 70 SA is available in the following variants:

Which Rifles Have Interchangeable Mounts

Two-piece mounts

One-piece mounts

Our Recommendations for Mounts

Fixed mounts

Detachable repeatable mounts

Picatinny rails

Help Us Build Our Riflescope Mounts Database

Rusan Pivot Mount for Winchester 70 Standard, 770, Target (XTR), 40 mm

VIDEO

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Winchester M70 SA

About the Winchester

Winchester Model 70 SA Rifle Review

Winchester Model 70 SA is chambered for the following calibers:

Winchester Model 70 SA is available in the following variants:

Which Rifles Have Interchangeable Mounts

Two-piece mounts

One-piece mounts

Our Recommendations for Mounts

Fixed mounts

Detachable repeatable mounts

Picatinny rails

Help Us Build Our Riflescope Mounts Database

Rusan Pivot Mount for Winchester 70 Standard, 770, Target (XTR), 40 mm

VIDEO

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