Any of the cartridges you suggested will do the job better than your 30-30. Each will shoot flatter then it. Besides those you suggested you can add the 243 and 270 to that list. As for rifles I'm not a big fan of these new triggers similar to the Accutrigger. That being said there are a lot of rifles on used racks especially this time of year that have absolutely nothing wrong with them other then guys (or gals) wanting a new one. Find one you like, get out shooting it and tag your deer next season.