I've never recently heard of anyone ever having had a bolt crack or get damaged in a dangerous manner using properly loaded ammo. It's just what the history books have recorded regarding the use of the "hotter" ammunition used in the late 1890s and early 1900s when testing the ammunition used in the Krags that tried to push 2200 FPS out of the 220 grain bullets. That's what mandated the rear sight changes in the later Krag rifles and created some of the rarer rear sights that were discontinued early.

As far as I would be concerned is if you have properly loaded reloads to shoot. Many of us have safely reloaded 30-40 ammo for years without any hint of trouble. If you are shooting factory ammunition, there should be no problem.

Remember what we have said many times here at KCA- many "shot out" or severely pitted bores can shoot quite accurately. You might want to stick with jacketed bullets and avoid cast lead bullets which might leave behind some darned difficult lead in the pits of the barrel to clean out.

So, try your rifle out and report back on your success!