I doubt you would see any difference. The .30-30 doesn't generate enough speed to warrant a premium bullet.
I picked some up cheap at a gun show, and they shot well, but I can't justify to myself the extra cost compared to a basic cup & core. I have a little bit of everything on my shelves; hornady, Winchester Silvertips, Core-Lokts, CIL, but if I had to settle on one bullet it would be the Sierra 170 gr FP. It just shoots so damn well.