Rifle chambered in one of the cartridges named Winchester Magnum- such as the .300 Winchester Magnum- or .300 Win mag for short.
The 300 Win Mag wasn't introduced until 1963. It could have had a new barrel put on it. Take it to a gunsmith.
The 300 Winchester Magnum was not introduced until 1963. So yes most likely it is the H&H. I would do a chamber cast to make sure though. Both the .300 Win Magnum and the .300 H&H Magnum were standard calibers for the Model 70 in that era, with the .300 Win Magnum the more rare of the two. If your rifle is only stamped ".300 Magnum" it is more likely the .300 Win Magnum. You will want to have the chamber cast and the caliber verified before attempting to fire the rifle. I am lucky enough to own a pre 64 model 70 win,in the 300h&h.It is stamped 300 H&h Maginum.If your gun is stamped 300 Magnum , it is probally a 300 win mag.
If you go onto the magnum website, you write the code in and you can win money!
Not even close.
TRY THE WIN COLLECTORS SITE
You will have to specify what the weight of the projectile is and muzzle velocity at a minimum to get an answer.
Depends on who made the 300 Winchester Magnum.
Try Proofhouse.com
I'm not sure when you posted this question, but I purchased a Winchester 264 win mag a few months ago at a gun auction. I bought it for $350.
No. .270 Winchester and .270 Winchester Short Magnum are not interchangeable cartridges.
The . 300 Winchester Magnum is a larger cartridge. They both use the same diameter bullet.