One area a 45 lc will give the 30-30 a run is if you want really deep penetration on flesh and bone. If you reload, you can launch some really heavy cast bullets (approx. 345-350) grains out of a Model 92 at some hearty velocities. 30-30 your pretty much maxed out at 200 grains. For short range thump I would take a heavy loaded 45 LC, Model 92 over anything a 30-30 can push. .
You can't go wrong with any of your (3) choices.
