Now this is going to be an unusual answer. I have re-loaded a bunch of Speer indoor practice ammo. This consists of a plastic bullet and case powered by only a magnum pistol primer. Why you may ask? I have 7 grandchildren living with me and this was my effort to get them of those horrid games they play all day long. So far it's been successful and even the 8 years old's(twin girls) are enjoying shooting.
Jim