If it's in original military configuration these rifles are worth quite a bit of money now.

I have a M-1903A1 and love it. The '03 is a refined Americanized Mauser. Probably the best of the Mauser based design.

Is your '03A3 a Remington or Smith-Corona?

Its a remington. Serial number 4159xxx(serial number x'd out by Chestergolf for posters protection) barrel marked 12-43. So was manufactured in 1943 i believe. It has reman markings also in the way of OG, RA, and one that i cant read i think its P?A in a box but could be R?A. My father had a scope mounted on it in the 60s, but other than that its all orginal. So the collecter price isent with it i would never sell anyway. The markings i cant figure out are underneith infront of the clip housing there is two circles next to eachother and a tringle directly below them. One circle has a 16 in it. Do you know what these mean?
So you have a A1 whats the serial number and markings? Do you or have you ever shot it? I know mine is super accurate tight groups at a hundred yards. I also have a m1917 enfield. Somewhere along the way the stock was cut down and sporterized. It still has the orgianal peep sight. When i took over the A3 thats what my dad used to hunt. He shot a running black tail in the head at 40yds after i missed it with the A3.....nice 3x3 biggest buck he ever shot and the biggest i ever had a shot at. All info is much appreciated.
thanks
Ryan

My '03 has a High Standard barrel from 1944 from it's WW2 rebuild. The stock does not have any marks (these are called cartouches). The receiver is a 1920 Springfield Armory. I shoot it in CMP and Military Surplus matches. I also have a M-1917.

The '03-A3 was build as a second standard battle rifle for the US during WW2. The M-1 Garand of course being the primary rifle. This was done to allow the arsenals to be built up quickly by issuing the Garand to front line combat troops and the '03-A3 to units who would be close to combat but not directly in it. Remington already was building the M-1903 and the '03-A3 was streamlined a bit to make manufacture faster. Most of these rifles were not sent overseas and instead were used as training rifles, guard duty weapons, and later sent out as military aid.

The cartouche OG stands for Ogden Arsenal in Utah. If RA is on the stock it could be for Raritan Arsenal in CA. There should also be a P in a circle on the grip area behind the trigger guard. This is the proof mark that US rifles were stamped with showing that they passed test firing. The other could be RIA. That would be Rock Island Arsenal in Illinois. It's hard to say without looking at it. I don't understand why there would be so many arsenal marks on one '03-A3. Can you post some pictures of them?

BTW, if the '17 is complete a replacement stock can be usually be found if you want to "restore" it.

If it's in good condition and proper working order then it's a great rifle for hunting. A great many '03 Springfields have been sporterized for just that purpose. A great platform for a sporterized hunting or even target gun.

If the '03 A3 is all original, personally I would retire it based on its worth.

There are many inexpensive guns these days to hunt with, no need to accidentally beat up or misplace a piece of history.