No. You wouldn't even be able to get the .303 to chamber in a .30-30 rifle. They're two very different cartridges, in no way interchangeable with each other, and this should not be attempted.
The cartridge is sometimes called the .303 Enfield or .303 British (or even 7.7×56mmR). Do not attempt to use other ammunition.
If still in the original configuration, these were chambered for the .303 Enfield, aka .303 British.
No.
No.
Yes
yes there is a springfield .303 i have one from 1942 its a springfield rifle with a .303 british barrell
number5 mark 1 enfield 303 british jungle carbine
Assuming you mean a rifle such as the SMLE, the cartridge used in the .303 Enfield, also called .303 British. See the link below for information on this ammo. However, if you are not certain (some military surplus rifles were rebarreled into other calibers) have a gunsmith take a look at it.
yes it is just a difreint mesherment 303 is british and 7.7 is jap.
The .303 British and .303 Savage are not the same. Only purchase the caliber that is printed on the barrel.
British 303
Combination of serial number and features.