No. It may chamber, but the .308 has a wider neck diameter, shoulder diameter, and a longer case length.
Yes it will chamber and fire but you should not do that. Due to the different dimensions of the case it may rupture and expose you to high pressure gas. It's certainly not recommended.
Not even close.
No. The WSM stands for Winchester Short Magnum. They are not interchangeable.
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.
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".
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.
If we are talking about a savage model 99 lever action rifle?Then your rifle was made by savage in 1946.
If we are talking about a savage model 99 chambered in 300 sav?Then your rifle was produced by savage in 1934.
If we are talking about a Savage model 99 rifle,chambered in 300 Sav. caliber,then your lever action rifle was produced in the year 1949 by Savage arms Company.
If the gun chambered in 300 savage caliber is a savage model 99 then the rifle was made in 1940 by savage arms company.
Your serial number indicates that your Savage model 99 rifle in 300 Savage caliber was made in the year 1947.
That would depend on the overall condition of your rifle,its age(by serial number) and what model of Savage rifle is chambered in 300 savage caliber.None of these questions were described in your question.
The term 300 mag usually refers to the .300 Holland and Holland magnum rifle cartridge.