While i agree that a fixed scopemay be the best fit for a 30/30 I also think you simply can't go wrong with the one you bought as it will work just fine.The 2x7will allow you some wiggle room at the range and in the future if you ever deciede to add to your gun collection.

I think you did just dandy the VXII is a nice scope for under 200 smacks. Re:the mounts I personally would have opted for something a little more robust, along the lines of Leuy's or Warne but hey I understand the need to keep the budget in line as well. Best of luck