Well, I have an old lever action 40-65, Winchester Model 1886 with an octagon barrell. It weighs a ton but what an action. It was my Grandfathers. Is that big bore enough. I had to buy ammo from this special hand loaded stuff out of Vermont I believe it was. What a hunk of bullet. The family "Tale" that goes with it is that he once shot 2 deer standing side by side and dropped them both on the spot. Probably didn't happen, but that's the story that was passed on to my father.