Japanese
High Standard - the manufacturer
No. It's not designed to shoot them.
Depends on what the rifle is, and whether or not you can trace it to the actual manufacturer. Interarms was an importer and distributor - not a manufacturer.
Proof mark.
A rifle.
Contact manufacturer through their website- have the serial humber of your rifle. We cannot answer with no information on your rifle.
SKS receivers are milled. AK receivers can be stamped or milled.
It should be stamped on the barrel It should be stamped on the barrel
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.
Well, it depends on what you mean. The caliber is "determined" at time of production based on whatever caliber the manufacturer wants it to be. The caliber can be determined later by looking on the barrel. The caliber will almost always be stamped somewhere on the barrel.
After 1920 Remington stamped a date code on the left side of the barrel in front of the receiver. The diagram and date code table is on the Remington Society of America.
caliber and maker's name