On Tue, 11 Sep 2007 17:17:52 -0700, "SteveB"
wrote:

Take it to a gunsmith, and they will show you how to measure the boy.

The average rule of thumb, for the average shooter, is to place the
butt stock in the crook of your elbow and measure to the middle joint
of the trigger finger.

This is a rough but generally accurate measurement of "length of pull"

This
will be helpful because he will soon need a longer stock as he grows, and
you can buy butt pads and slip over recoil pads that will build up what you
will be cutting off now. Replacing the whole stock would not be advisable
because he is going to grow each year. He's not going to be shooting enough
that it has to be exact, so close enough is okay. When he is old enough and
stops growing, it'll be way past time to buy another gun. This one will
look funny with all the extensions and butt pads on it.

Good stuff.

This btw..is the reason you NEVER buy a synthetic stocked arm for a
youth. Only wood ones.

Gunner