Worst hunting bullet I ever tried for deer was a 405 grain speer in the 45/70. I was much younger and it was definately the wrong combo for lung shots. Live and learn as you get sick to your stomach watching a deer run off and 3 miles later its still going
That’s pretty interesting as they’ve been sledgehammers for me. Blowing big holes through deer. I was surprised at the holes till I ran a few into jugs and saw they expanded to over/about an inch.
Yeah my experience is that the Speer 405 is about as soft as a wad of chewing gum.