In my case, I had a custom 375 H&H LH on a 700 action fail in a DG situation in Zambia. The bolt seized after the first shot on a cape buffalo. Thankfully, he took off in a different direction. I hammered the bolt open with the hilt of my Randall. The extractor held and later shots functioned properly, but I totally lost confidence in it as a DG rifle.
It sounds like the rifle caught something like "buck fever" in the presence of dangerous game, it functioned OK before and after the encounter, amazing things can happen.
