Appleseed works to my amazement.
A year ago, I attended my second Appleseed and even though I did not get my patch, I did improve my rifle shooting a lot.

Day 1

Day 2

Day 3
Yesterday I realized that even though I have not done a lot of rifle shooting lately, going back to the basics taught in Appleseed work righteously. I had bore sighted an AR with iron sights only and then checked it in the range at 65 yards from supported standing. Never missed a shot.
Later that day I tried a 6mm Remington rifle, also with iron sights at the same distance and to my amazement, I had no problem hitting the steel. I had never shot the rifle before, and I was truly expecting to be hitting dirt rather than ringing the target.
Both shootings had the same thing in common: I mentally set myself back to that Appleseed class and did what I was taught.
It worked.
So, once again: If you have thought about going to Appleseed, stop thinking and just do it.