"cquickel": Are you positive that your rifle is not a Model 1896
Krag
? It is very easy to misread the Model date on an 1896. It looks like 1898 because of the depth of the stamping.
Franklin Mallory, "The Krag Rifle Story", 2nd Edition, page 246, reports the highest observed Model 1896 Rifle serial number 109,020 and the lowest observed Model 1898 Rifle serial number 109,342. He also reports, on page 280, "Serial Numbers of Known U.S. Krags" an 1898 Rifle #109,128.
Joe Poyer lists the 1st Model 1898 Rifle being completed on July 8, 1898, around #109,000.
The easiest way to tell the difference between 1896 and 1898 Model U.S. Krag actions is how the receiver is machined for the root of the bolt handle. The 1896 action has a raised flange and the stock has a semi-circular inletting. The 1898 has a simpler squared notch and inletting.