I just sighted in a Marlin 336 for a fellow and decided to adjust the sights on my Winchester Model 94 for 150 grain WW Powerpoints. I was shooting the same ammunition in the Marlin. I noticed that the felt recoil was less in the Marlin. I shot a three-shot group that was 1 5/8 inches at 100 yards. This was in a rifle that was straight out of the box and using factory ammo. As a practical matter, this is all the accuracy needed for this cartridge. My friend is going to have to come up with some really good lies as to why he misses a deer.
You say that you want to hunt deer. I take that to mean that you are not interested in just shooting deer, because your .30-06 is fine for that. To people who complain about the range of the .30-30, I say that hunters have a method for dealing with that: it's called getting closer. Getting in close enough to make a clean kill is a lot harder than shooting a longer distance. I just killed deer at 200 yards with a .300 Magnum and at 20 yards with a BP loaded .44-40, and am prouder of the closer shot than the longer one. Indians used to consider the bravest act touching an enemy with a coup stick, as opposed to putting a arrow through him at a distance. I feel the same way about hunting.
A couple of thoughts about ammo. You can find .30-30 almost any where, while the larger calibers may be a long way off, in case you run short. Hornady has just come out with pointed ammo in .30-30 and .35 Remington that increases the useful range, if that is a worry. I have not heard any range reports about its effectiveness.