well you wouldnt know unless you tried the choke, but from what i have heard the rifled barrle is better, i am from ohio, where did you move to? and also my cousin hunts with a smootbore up there so if your accurate with the 870 the way it is with rifled slugs then dont do anything, you have alot of time to try stuff out there gun season isnt till the end of november. good luck