gee , you can't kill deer with a 30-30 it's been common knowlege since the 50's. And if your bullet dosen't have a plastic tip and not called magnum it ain't even good for bunnies .
I don't even use 170 gr bullets , I have always used 150 Winchester or Remington. Best was the old Silver tip . Now it the PP or Corelok.
please don't let the deer know I use sub standard loads in a useless 30-30 gun . And then there is the 7X30 waters 120 gr bullets I also use that are useless also.
170 gr bullets should leave a nice hole on one side and a gaping hole on the other with deer . Hogs someone else will need to chime in.