Although I don't have anything like their background in testing, I'm entirely convinced by what Larry and Goodsteel have said. If I can add anything, it is in a series of experiments I saw written up several decades ago, in which .303 barrels were amputated down to about bullet nose level, and the rather hard-jacketed MkVII round was fired. The bullet base was blasted to a sort of irregular cone shape on exit. Yes, a jacketed bullet can be expanded enough for the throat to act as a momentary obstruction, and most likely did in the cases, with partial charges of slow powder, which Ackley described but never reproduced. He was a great experimenter, but didn't say what he is often represented as having said.
I also agree with Goodsteel on the qualities of the 95 Marlin. Many shooters seem to have a need to find fatal flaws in the work of the industry and governments on which we depend. I suppose it is an oedipal thing. I also agree that while the OP may have made an error of judgement, it was probably a slip of the hand anybody might do sometime. Of course we shouldn't. But it doesn't begin to compare with the people who think "I know this isn't right, but it will work out all right... won't it?"