336 is a great gun I have one in 35rem. For the 30-30win figure on 200 yards and the type of sights used will make or break than range. XS systems makes a peep sight that will greatly inhanse accuracy and keep it a well balanced gun. I have a 1-4x20mm VXII on mine and love it. I suggest not getting a long/heavy scope for it since that will mess up it balance and handling.

I suggest the leupold VXI 1-4x20mm or the light weight VXI 2-7x28mm or even a ultra dot all these are small and light weight. If you need a longer rang gun someday get a 270win/308 etc.. and an aproperate scope for it like a 3-9x40mm.

As for game expect great sucess on deer, hogs, black bear, at about 100 yards. It can and has taken elk and moose, but the are better cartridges for them. The 170gr Corelokts, Power points are great try them first.