RE: what do you think
Just remember one thing when listening to people on this site... They don't have to prove anything they say. If that was a below average, but by no means terrible, group at 40 then that is just fine for deer hunting. Everyone thinks pin hole dot drilling is essential and in reality it just isn't. If you are inside the 8 ring every time, then you are killing animals every time. I am not saying that we all shouldn't practice to be the best we can, but there is no need to shoot a dime at 40 yards.
Caveat is I am not a "target archer". I am simply a consistently successful bowhunter.