.30-03
The . 30-03 Springfield ( 7 . 62×65mm ) was a short-lived cartridge developed by the United States in 1903 , to replace the . 30-40 Krag in the new Springfield 1903 rifle . 
<triplet> Springfield 1903 rifle <subj> .30-03 <obj> ammunition <subj> 1903 <obj> service entry <subj> 1903 <obj> service entry