It was a modern rifle of it's time and the bolt action is indeed smooth, but also turned the biggest weakness.
Rain into the magazine was just part of the problem. The cartridges get wet and when placed in the camber the rifle will go up to the right due to non-symetric locking knobs on the bolt. This problem is not found on the K98 that came later.
I have one myself, but since they are not legal for hunting here any more, I haven't fired it in years.. perhaps it's time to take it out again

Btw. 'Krag' is short for Krag J�¸rgensen. It's taken from the two constuctors, the officer Ole Herman Krag and gunsmith Erik J�¸rgensen from the norwegian army. Many thinks it is just one person..