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Winchester · Rifle

Winchester Model 70 Extreme Weather SS

Bolt action · .300 Winchester Magnum · introduced 2008

Also known as Model 70 Extreme Weather SS, M70 Extreme Weather

About the Winchester Model 70 Extreme Weather SS

The Winchester Model 70 Extreme Weather SS is a bolt-action hunting rifle and an all-weather variant of the classic Model 70. It pairs a matte stainless steel receiver and free-floating fluted stainless barrel with a hand-laid composite stock over an aluminum bedding block, making it highly resistant to moisture and harsh field conditions. It retains the Model 70's controlled-round-feed Mauser-type claw extractor, three-position safety, and user-adjustable M.O.A. trigger. In .300 Winchester Magnum it wears a 26-inch fluted barrel and a three-round internal magazine.

The Winchester Model 70 has been nicknamed 'The Rifleman's Rifle' since its 1936 introduction, prized for its controlled-round-feed action derived from the Mauser 98. The Extreme Weather SS carries that heritage into a corrosion-resistant stainless-and-composite package built for hunting in punishing conditions.

Winchester Model 70 Extreme Weather SS specifications

General

Type
Rifle
Action
Bolt action
Firing mechanism
Hammer-fired
Trigger
Single stage
Trigger pull
1.8 kg (4.0 lb)
Calibres
.300 Winchester Magnum
Magazine capacity
3 rounds
Magazine
Internal

Dimensions

Barrel length
660 mm (26.0 in)
Overall length
1187 mm (46.7 in)
Weight (empty)
3.29 kg (7.25 lb)

Barrel

Rifling twist
1:10 in (254 mm)
Rifling
Right hand

Materials

Barrel
Stainless steel
Receiver / frame
Stainless steel
Stock
Composite
Finish
matte_stainless

Performance

Muzzle velocity (typical)
900 m/s (2953 fps)
Muzzle energy (typical)
4722 J (3483 ft·lb)
Effective range
900 m

History

Introduced
2008
Production status
In production
Country of origin
US
Designer
Winchester

Features

  • Controlled round feed
  • Claw extractor
  • Free floating barrel
  • Fluted barrel
  • Recessed target crown
  • Adjustable moa trigger
  • Aluminum bedding block
  • Pachmayr decelerator recoil pad

Safety

  • Three position safety

Barrel length, weight, twist rate and magazine capacity vary by chambering; figures given are for the .300 Winchester Magnum configuration (26-inch barrel, 1:10 twist). Chambered in a wide range of standard, WSM and magnum calibers.

This is a variant of the Winchester Model 70.

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