Not much to add, but I had a very unusual exit wound this year on a antelope doe I shot with a 30-30.
I was using some older factory Federal 170 sp and the shot was about 120 yards broadside.
This is the strange part , the bullet exited thru the ribs and left a HUGE HOLE 5 to 6" in diameter, I am not kidding, I did take a pic of if but it was with one of those disposable one time cameras so I cant post the pic. My two hunting buddies and I have never seen a hole like that before on a animal, In the picture I have both of my fists next to each other and inside the wound with room to spare.
I have been hunting for over 45 years and have never seen a bullet do this type of damage before,I dont use a 30-30 alot but I had a new red dot sight on it and had a close shot for a antelope so thats what I used and if I use it again on deer or antelope I will get some different bullets first. Jedman