<P> In 1936, Winchester introduced the Model 70 bolt - action rifle to the American market . The Model 70 was largely based on the Model 54, and is today still highly regarded by shooters and is often called "The Rifleman's Rifle". In 1999 Shooting Times magazine named the Model 70 the "Bolt - action Rifle of the Century". </P> <P> Throughout its life, the Model 70 has been offered in many grades and styles . Over the entire production of the Model 70, chamberings have included: . 22 Hornet, . 222 Remington, . 223 Remington, . 22 - 250 Remington, . 223 WSSM, . 225 Winchester, . 220 Swift, . 243 Winchester, . 243 WSSM, . 250 - 3000 Savage, . 257 Roberts, . 25 - 06 Remington, . 25 WSSM, 6.5 × 55mm, . 264 Winchester Magnum, . 270 Winchester, . 270 WSM, . 270 Weatherby Magnum, . 280 Remington, 7mm Mauser, 7mm - 08, 7 mm Remington Magnum, 7mm WSM, 7mm STW, . 300 Savage, . 30 - 06 Springfield, . 308 Winchester, . 300 H&H Magnum, . 300 Winchester Magnum, . 300 WSM, . 300 Weatherby Magnum, . 300 RUM, . 325 WSM, . 338 Winchester Magnum, . 35 Remington, . 358 Winchester, . 375 H&H Magnum, . 416 Remington Magnum, . 416 Rigby, . 458 Winchester Magnum, and . 470 Capstick . </P> <P> The pre-1964 Model 70s were manufactured from 1936 through 1963 after which time significant changes in the design and manufacture of the rifles were made . Pre-1964 Model 70s bring a substantial price premium due to a public perception that they were better, as they had several desirable features (Mauser - type controlled round feed, cut checkering) that the post-1964 version did not . The best way to identify a pre-1964 Model 70 Winchester rifles is the serial number and the fore - end screw to secure the barrel to the stock . Model 70 rifles with serial numbers below 700,000 are the pre-1964 variety . The receivers of these Model 70s were machined from bar stock steel . </P> <P> The original Model 70 quickly established an excellent reputation with American sportsmen . It was a high - quality action of considerable strength, with 2 forward locking lugs and a Mauser - type non-rotating claw extractor . The key benefit of the Mauser - type extractor compared to later versions is that it captures the rim of a cartridge as it is fed upwards from the magazine and controls its journey forward into the rifle's chamber . This feed is called "controlled round feeding" (CRF) and is favored by a number of shooters who prefer rifles to feed reliably, especially those who pursue dangerous game . The ejector was of the blade type similar to that of the Mauser 98, but considered superior as it did not require a Mauser - type slot through the left locking lug; instead there was a slot in the bolt face below the locking lug, leaving both forward lugs solid and hence stronger . The main benefit of the blade type ejector is it is simpler and perhaps more reliable (being considered less susceptible to ingress of foreign matter) when compared to the later post-1964 plunger ejector in the bolt face controlled by a coil spring . </P>

How do i know if my winchester model 70 is pre 64
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