The 336 is made in 2 cal at this time 30-30 and 35 rem both are easy to find at a good gun shop. Be aware that marlin also mfg. 2 guns in this 336 one is eastern hardwood stained and the other is american black walnut and checkered, rifle is the same only difference is the wood one is nicer looking than the other.
I have both these cal.
Deaconllb