Yes
The . 300 Winchester Magnum is a larger cartridge. They both use the same diameter bullet.
1960
The accepted dimensions of the entire cartridge for each are as follows:308 - 7.62x51mm (do note that, although dimensionally similar, 7.62 NATO and .308 Winchester ARE NOT the same round).300 WinMag - 7.62x67mm.338 Lapua - 8.58x70mmThe bullet diameters of each are as follows:308 - 7.8mm/.308 inches7.62 NATO - 7.8mm/.307 inches.300 WM - 7.8mm/.308 inches.338 LM - 8.58mm/.338 inches
100-400
It is a more powerful cartridge. The .300 Win Mag tops out at about 4000 ft lbs of energy, vs the .308 at 2800 ft lbs
The cartridge in question is the .300 Winchester Magnum, and not the .308 WinMag. The .308 cartridge is about 16mm shorter than the .300 Winchester Magnum casing. The two are NOTinterchangeable.
Neither. Each performs as it should within its limitations.
Get it to a gunsmith now.
You will have to buy all the loads available and shoot them to find out. All weapons have a preference for certain loads. The only way to know is to shoot what is out there.
If you are asking about the the cartridge length,then the 300 win mag.is longer than the .308win.caliber.If you are asking about bullet diameter then both cartridges are the same .308 bullet diameter.If you are asking about muzzle energy(hence power) then the 300 win mag.is considerably more powerful than the .308 winchester cartridge.
You will have to state your intended use.
Either 1-10 or 1-12