Model 70 Winchester pre-WWII has 300MAG as the caliber. My question is what 300Mag?

[jckeffer]

I didn't think Winchester had a model 70 Rifle 300MAG that early or that the Winchester 300mag was available that early. Was there another 300 mag chambering for the Model 70?

 

[Jim Watson]

.300 H&H

 

[44 AMP]

The only .300 Magnum that existed before WWII was the .300 H&H Magnum.

introduced as a cartridge in 1925, and chambered in the Win M70 in 1937.

The next .300 Magnum in the Model 70 was the .300 Winchester magnum introduced in 1963.

 

[langenc]

Id love to find one of them in 222... anyone?

 

[Scorch]

Id love to find one of them in 222... anyone?

Pretty hard to find a pre-war ANYTHING in 222 Remington. The 222 Remington cartridge was developed in 1950, 5 years after WW2.

 

[Jim Watson]

There were some Hornets converted to .222. The quickie conversion was a rechamber and bolt face job, there were a few deluxe rifles with working magazines.

 

[T. O'Heir]

How sure are you the barrel is original?
Bought a 1952 vintage compilation of Jack O'Connor's articles while being couped up by the Covid Panic. .300 Mag meant .300 H&H or .300 Weatherby in 1952. The Weatherby came along in 1944.