Depends on year of manufacture, condition, quality of stock, but probably in the ballpark of $400-$500 for a good condition weapon.
100-1000 USD depending on condition, accessoires.
That is a Springfield rifle I believe.
Remington Firearms Company during WW2
03A3
line up the target on the top of the front sight while sighting the front sight through the rear peep sight.
No, the M1 Garand bayonet will not fit the 03A3 Springfield rifle. The M1 Garand and 03A3 Springfield have different bayonet lug designs and dimensions, so their bayonets are not interchangeable.
If truely unfired and not an arsenal rebuild, it would probably sell for $1500.00, however if the serial number fell into the range of rifles that were designated as sniper weapons, value would exceed $7500.00
http://www.surplusrifle.com/03a3/operations.asp
50-600 or so
None of the 03A3's are antigues
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
It depends somewhat on your definition of "new", but basic infantry weaponry in World War II for the United States Army used only two weapons from Wordl War I in the regular footsoldiers equipment: The M1911A1 Colt automatic pistol, and the Browning Automatic Rifle (BAR). The 1903, and 03A3 Springfields of World War I were also used, but as sniper weapons, not as main infantry shoulder rifles. The basic shoulder rifle was the M1 Garand (1936), the secondary support shoulder weapon was the M1 Carbine, the submachine guns were the Thompson submachinegun, which missed, literally by days, being used in World War 1, and the M3 "grease gun" submachine gun. The bazooka was also a new weapon in WW II.