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.
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.
300 mag is much bigger bullet
It has a longer casing and the projectile generates more energy. So in those regards, yes.
Depends which 7mm your talking about. The only 7mm I know of that has a larger case capacity than the 300 wby mag is the 7mm Remington ultra mag or 7mm rum
The . 300 Winchester Magnum is a larger cartridge. They both use the same diameter bullet.
.300 WM is larger in calibre, it has a longer case, and it generates more energy.
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
Both are .30 caliber.
There is no "one" better anything- including rifle calibers. The .300 Win Mag can fire a heavier bullet a longer distance, but is generally a heavier rifle, has more recoil, and you can carry less ammunition.
what goes father a 300 short mag or a 300 mag
No, the 300 ultra mag cartidge is not interchangeable with the 300 win mag.