It'll over penetrate. Just sayin' 'cause I never recovered a .30-30 bullet from a critter in my life and it's been a lot of critters.
On other points, there was mention earlier about putting a red dot on the roof of a lever gun. Well, to my eye it is both a clash of technology and a brilliant idea for assisting older eyes. Made such a bold suggestion to a neighbor a couple years back and he rushed out and got a Millett SP1 on his Marlin. That's when the dying started...
Won't get beyond a good receiver sight for my own for some years though, maybe a detachable scout mount down the road when I get feeble. Or duct tape.