I like the Shoot-n-see targets. When shooting in low light the "splash" of color around the bullet hole makes sight adjustment easier and in the winter months, when I'm always shooting around dusk, they are a real aide to shooting. Unfortunately, they are expensive so I brain worked a way to duplicate it and then checked the Internet and found that I've been beaten to the punch. My way, and everyone elses it seems, is to take a sheet of bright paper, cover it with strips of wide cellophane tape, and spray paint it with flat-black paint. Then the bullet strikes the target, it flakes off around the bullet hole, leaving a ring of the underlying color. I use a white out pen to make the square in the middle of the target but spray paint and a template would work better.
One tip is to take the taped paper and wipe it down with a soapy sponge before painting. The paint sticks better. Hope this helps someone.~Muir