I read a comment about the recent cutaway where the poster suggested dents came from stacking arms.  Have you done it?  I have, but not with a Krag.  In early Feb. 1960, I was in USN boot camp.  We had real 1903 (and a few 03A3) Springfields as drill rifles, not some sort of pretend drill rifles.  We marched about with our rifles and stacked arms when ever we went to a class.  If you were careful, they did not get too badly dented.  If the stack fell down, the Chief was unhappy, so we took care.  Not a difficult skill to master. 

FWIW, the real 1903 I was issued had SN 4003.  Yup, a real rod-bayonet .30-03 that had been given the 1906 conversion.  Would have worked too.  Bolt had a complete firing pin.  Barrel was not plugged.  I could see some rifling.  I knew it was a museum piece and treasured it.