How can you use a .22 to train to be a rifleman?
Appleseed is meant to bring you from a simple rifle owner to a rifleman, someone capable of hitting a man-signed target at a quarter mile. Zoogster properly noted that a .22 isn't any good for a rifleman's work--it can't hit out to a quarter mile. So what's the deal with bringing a .22 to an Appleseed?
Appleseed uses the U.S. army AQT (Advanced Qualification Targets) scaled down to 25 meter distance. That is, the 100 meter target is 1/4 size, the 100 meter target is 1/8 size, and so on. Most of the Appleseed training is shot at 25 meters using these scaled-down targets, allowing for use of .22 (and a lot less hiking to the target).
At 25 meters you miss out on doping the wind and sight adjustment. And with a .22 you will miss out on a lot of recoil. What you will learn, though, is sling usage, prone position, sitting position, offhand position, natural point of aim, sight alignment, sight position, breathing, trigger control, cadence--things that apply to any caliber at any range. That's on Saturday.
Then on Sunday, for those who brought high-power rifles, there's some shooting at long range using full scale targets, so that you can verify that your sights are correct and your skills "scale up."
It's a great way to keep ammo cost down and accelerate the training (it's a lot quicker to train at 25 meters than at 400).