Yes you do, especially for deer hunting.you don't need an SA for target practice or deer hunting.
my dad used bow and arrow.
What if you wound the deer and because you don't have a fast follow up shot lose the deer when it escapes? Then you have a deer out there suffering for god knows how long before it dies.
Why do you want animals to suffer so much?
Have you ever hunted or shot a firearm? I think its hilarious that people with no experience at all are going to tell people with oodles of experience how firearms work and how you are suppose to interact with them.