Way back when I hunted exclusively with the .30-30 and, from my experience, you can't go wrong with the Winchester 150 gr. hollow points.  Maximum energy transfer on the animal because none of the animals I killed with it had an exit wound.  Open them up and pour the guts out.  Most never even took another step but crumpled right on the spot.  I am assuming you can still buy these bullets. I've also been hearing a lot about the Hornady LEVERevolution bullet of late as well.  That load comes with a 160 grain bullet, splitting the pie between the 150 and 170.  A friend of mine shot one with that load and hit it in the neck.  It had been hit by a car on a backcountry road and had not been hit solidly enough to kill it.  He's not the kind of person to embellish a story and said it put a big ol' hole in her neck and she, although already suffering trauma, just went on and died immediately.  The 170 grain RN is a good bullet in tight quarters but I still think a 150 gr. bullet is all you need in .30 caliber, especially on the subspecies that resides in Kentucky, where I live and we have some decent sized animals here. Occasionally, here in Kentucky, you might get a longer shot (150 yards) from time to time and the 150 shoots a little flatter, making a most accurate shot a little more of a sure thing.