There’s a ton of good advice here and none of it seems to be wrong, just a lot of different ways.
A couple things, a .223 round will kill a deer and drop it right where you shoot it. Every deer I have ever shot dropped in place and that was with .223. Some with a bolt some with an AR. My bolt has a longer barrel which makes it more accurate and an expensive 4x12 Leopold scope. You’re only going to be firing 1 round at it anyway.
The second thing, if you’re thinking of meat and deer, that does you know good now. They are out of season. You’ll have to wait until fall or winter. If you need meat now you’ll starve. Thus Dawn’s fishing comment. Unless… you’re in the market for hogs. They are open season year round. The same goes for my hunting hog experiences. 1 shot drop, or as I call it, “a spinner”, and that once again is with a .223. The furthest I have ever had to … go look… for an animal was actually last month. I hit a hog and it went about 15 yards before it dropped and spun.
What state are you in, or where do you plan to hunt?
Some of the best advise on here was to find a friend who has hunted before and can mentor you. You’ll have a lot of fun with them while hunting. Or, pay to go hunting and pay a bit extra for a guided hunt and field dressing. You can watch and learn this way. We don’t charge a lot for guided hunts vs. “there’s a stand, there’s the feeder” text when you’re done and we’ll come get you.