On the general topic of custom Krags, I noticed two caliber-converted ones in the gun porn section of Nick Stroebel's "Old Gunsights and Rifle Scopes:" a Paul Jaeger in .35 WCF on page 316 and a no-name varmint rifle in ".22 Krag" on page 321 (You all may know these, but I just noticed them).

Re: Krag action strength, amply proven by Mike Petrov in previous posts, I note that the .35 Win is/was no pussycat and the ".22 Krag" in one of its many avatars was sometimes called the ".22-250 Rimmed." So the old guys knew the Krag action could "take it"!

I once shot on a line with a guy in western MA who was using a full-length .30-40 case blown out to Ackley specs and necked down to .224 and the neck shortened. It had to have been operating at near .220 Swift levels (in fairness it was on a big FBW action, not a Krag). I wonder if custom Krags were ever pushed to that level of pressure?