1 trillion
Yes, so long as it isn't an m5a1 and is the 1905 model you should be fine.
100-1000 USD depending on condition, accessoires.
http://www.surplusrifle.com/03a3/operations.asp
50-600 or so
Remington Firearms Company during WW2
That is a Springfield rifle I believe.
None of the 03A3's are antigues
03A3
line up the target on the top of the front sight while sighting the front sight through the rear peep sight.
Surplusrifle.com has a detailed, step by step process. Look for the links on the left side of the page under the Maintenance heading. http://www.surplusrifle.com/03a3/index.asp
No such thing. You can have small caliber but not low caliber.
the are also chambered for the 38 caliber, 9mm caliber and 22 caliber