Consult with the maker of your rifle before you attempt to do this. Some .308 Rifles don't chamber the 7.62NATO ammo properly also some reloaded NATO rounds may have a little too much powder load for a commercial .308 rifles parts to handle, it may not explode on the first few shots but it may be doing unseen internal damages that will lead to an action or parts failure, which may lead to injury or death.
No, it cannot.
No.
It can shoot about 3 miles. It can shoot accurately to about 1100 meters in the hands of a highly skilled marksman, depending on which rifle is firing the cartridge.
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.
A rifle with a 7.62x51 chamber can chamber commercial .308 Winchester ammunition - putting military 7.62x51 ammunition in a rifle with a dedicated .308 Winchester chamber is not recommended. Questions regarding your rifle may be directed at the customer service hotline of the manufacturer, as some imported rifles actually do have a 7.62x51 chamber, but must be stamped as .308 in order to be importable as sporting rifles.
Possibly. The commercial .308 Winchester generates higher chamber pressures than military 7.62x51 does, and this may not be advisable practice for all 7.61x51 rifles. If in doubt, inquire with the manufacturer of the rifle before using commercial .308 ammunition.
NEVER FIRE AMMUNITION IN A WEAPON NOT CHAMBERED FOR IT!!!!!!!!!!!! Danger, Danger, Danger,#@@@@@@@@@@@@@@@@@@@@@
Maxiimum possible range- close to 5 miles- accurately- about 1200 meters.
If the rifle is chambered for the .308 Winchester cartridge, then long or short action can safely fire it. Long or short refers to how far the bolt travels when opened. The .308 is typically a short action- the 30-06 and longer cartridges cannot cycle thru a short action, and must be used in a long action rifle.
.308
It MAY shoot. It will not shoot well. It may not shoot safely. The .243 is a necked down .308 cartridge. You are sending a .24 bullet rattling down a .30 barrel. It may or may not trap enough gas to cycle an autoloader. It WILL blow out the case mouth.
The Savage .308 rifle can typically accommodate a range of bullet grains. It is important to check the specific firearm's manual or consult with a knowledgeable gunsmith to determine the optimal bullet weight for your rifle based on factors such as barrel twist rate and intended use. Generally, bullet weights between 150 and 180 grains are commonly used in a .308 rifle.