Yes. 30-06 and longer cartridges are long action.
300 win.
No, the 300 ultra mag cartidge is not interchangeable with the 300 win mag.
Best left to a professional gunsmith.
.300 WM is larger in calibre, it has a longer case, and it generates more energy.
Too much
Rifle chambered in one of the cartridges named Winchester Magnum- such as the .300 Winchester Magnum- or .300 Win mag for short.
Information about the 300 Win Mag, also known as the 300 Winchester Magnum can be found on the Wikipedia website. Videos about this item can also be found on YouTube.
Rough rule of thumb- 30-06 and longer= long action. .308 and shorter= short action.
Biggest physical difference is case size and lack of belt on the RUM
The M69 suffix identifies your 300 win mag as being a browning BAR that was made in 1969.
What is the Value of a Remington 770 300 win mag with a scope serial number M72031826
1976