When I was young I used the 30-30 and 32 Special in Marlin leverguns quite a bit. Later I got the 336 rifle in .35 Remington and was immediately impressed by how slick it loaded and how smooth those rounds cycled through that gun. I've often wondered if the .30 and .32 Remington would've been better in those guns than the rimmed cartridges that are synonymous with levers? How important is the rim in these rifles?