The .35 Remington is a great cartridge for a Marlin lever rifle.
http://www.chuckhawks.com/35Rem.htm
Or you could opt for the Nuclear Option and get a .45-70.

OTOH, there's nothing wrong with the .30-30 and there have probably been more deer killed with it than with any other cartridge in North American (and most certainly in the southeastern United States).


Colt1917