I have a marlin a ruger and a Henry brass frame. When I first bought the marlin I loaded it with 300gr bummers loaded hot. The more and more I shot the 45/70 over time the more and more I was drawn to and prefer shooting traditional loads out of them. 405gr bullets at traditional velocities. The ruger and the Henry have never had anything other than 405cast traditional loads in them. For punching paper that is the way to go and if you are hunting there is not any game in North America that it will not take cleanly.
I believe that the Henry is the equal to the marlin in strength but I am not an authority on that subject.