The article about flush magazines for the Krag is in "The NRA Gunsmithing Guide-Updated", mines the 1982 edition and usually still available at abebooks. Great book by the way, with plenty of how-to-do articles that we all grew up with in the 50-60's from the American Rifleman.

Larry Koller was also a big fan of the .250/3000, which made me go out and find a cherry Savage 99 EG back then.

Bob