I have a Super 14 30-30 barrel that is about 8yrs old now. It will shoot .6 to 1" groups on a regular basis with my load of W748 and 150gr Nosler Ballistic Tips. This is also with a T/C 2.5-7 scope, like cknight has on his. It's scary how regularly it will produce sub-1" groups at 100yds :shock: !! This has been the most repeatably accurate gun I've ever had (competing against the long guns in my safe).
Now, I have heard "rumors" that the newer 30-30's are not as good as the older ones, but I have no personal data to support this. I would not hesitate to buy another, though, if I had the need for it!
Good luck ... Crayfish