Impossible to answer with the maker's name and the serial number.
It's the caliber of the cartridge it fires.
Good rifle, good caliber for most uses. Did you have a specific question?
Uses .277 bullets
270
The .270 has MUCH more energy than the 30-30.
Generally speaking, no. You can only fire the caliber for which the gun is chambered. There are some exceptions, but not many.
100-500 USD
In excess of two miles
You have a browning a-bolt rifle chambered in .270 winchester caliber.
Some law enforcement agencies have used the .270 as a sharpshooter's weapon, but it was never military issue.
.270 refers to the caliber of the rifle. It fires a center fire, bottle necked cartridge. The parent cartridge is the 30-06, which is necked down to fire a smaller diameter bullet- .270 instead of .308. A very versatile long range hunting cartridge with moderate recoil. I think every major rifle maker in the US has built guns in this caliber.