You are in good shape for hog hunting with that load.
I have killed lots of hogs with a .50 patched round ball. I always shot right behind the shoulder, just like you would for a deer, and made the lung shot.
I made six one shot kills in this fashion, none of those hogs made 50 yards. I also killed 7 more hogs with the 30-06, made the same shot.
Biggest hog I killed was 180 pounds.
I did not find the hogs to have a tiny lung area, as shown on that texas link. Maybe Georgia hogs have bigger lungs than Texas hogs.
I just put the bullet an inch behind the shoulder and it was time to crank up the smoker.
I wouldn't shoot a 400 pound hog. While we killed and ate scores of hogs in central Georgia, they all were 200 pounds or less, and they were all delicious, except for one 450 pound monster my buddy shot in the neck with a 30-06.
The meat on that boar stunk so bad you couldn't stand to be in the kitchen while cooking the sausage.
Threw the sausage to the dog and he wouldn't eat it.
We threw that monster out into a field, I hope it didn't make the buzzards sick.