The Winchester .300 Magnum cartridge will fire a bullet about 5-6 MILES- but not accurately. The .300 Mag is an effective long range rifle cartridge, but effective range will depend on the individual rifle and skill of the shooter. They are frequently used in 1000 meter matches.
How far will it shoot and hit something??? i wouldn't put it past 300 - 400 yards comfortably
No, the 300 ultra mag cartidge is not interchangeable with the 300 win mag.
You can only shoot what is printed on the barrel. Mag and short mag are not the same.
yes
Which caliber?
About 150 yards.
a 150 grain bullet shoots 3290 fps
No, you cannot shoot a .300 WSM (Winchester Short Magnum) out of a .300 Win Mag (Winchester Magnum) chamber. The two cartridges have different lengths and designs, with the .300 WSM being shorter and featuring a different case shape. Attempting to fire a .300 WSM in a .300 Win Mag rifle could result in dangerous malfunctions and damage to the firearm. Always use the correct ammunition specified for your firearm.
roughly about 22 miles accurate
what goes father a 300 short mag or a 300 mag
If your barrel is marked .300 Savage then you can shoot .300 Savage ammunition by any manufacturer. I do not know of a "300 Savage Winchester Magnum".
Around 300 yards.