I agree with the above. I have shot many of my Krags with hundreds of rounds that were factory loaded and hand loaded. I have never had, nor seen, a failure in any way. If you don't overload your reloads, you should be well within pressure limits, even with 100+ year old Krags.

You are seeking a solution to a problem that just doesn't exist in any significant amount.

Shoot your Krags and enjoy them like the rest of us. There's lots of fun to be had!