I use cast bullets in both my 45/70 and 2 of those .444 Marlin lever guns. Many of those type bullets are just to hard for animals like deer etc. I like em to spread out a little and perform more damage on tissue.
I use a lot of thoes Remington 405 bullets purchased in bulk. I have a friend of mine who makes his cast bullets and they are really nice for thin skinned critters like deer more lead in his bullets.