Below is a collaboration between Earl Green and ourselves. Earl is a Great Canadian Trainer, a CGN member(Tritium), a Veteran of the OPP, and has trained with the who's who of trainers, and is an all around Great Dude.
Below is the Target we have Dubbed, Green's Squares.
This is designed as an accuracy targets. We used 1" squares for when you are starting up close and as you move out the greater distances the 4" box in the center. We went with Green not only for his name sake but also because it is right in the middle of the visible spectrum, which makes it easier to see and provides a better contrast between iron sights and the target.
These will also work quite well for sighting or precision work with a rifle.