Yeah, 98 mauser. Just be aware there were intermediate length 98 mausers made(FN 1924, 1903 Turk. Yugo 1924, 24/47 and I think a Mexican 98) These are around a 1/4 inch shorter than most 98's and will not work in the standard length action. Numrich Arms has a chart online giving bolt body lengths for the different bolts.