Originally Posted By: GreyhunterTinfoil works but I've had better success with using a torch to heat up 3/8" steel plates. The thicker plates hold heat for quite a while and with a little paint they are just like new again. I was using white paint but my plates face the sun so I painted them black to see if they will soak up enough heat from the sun to glow without the torch, but I haven't had time to try it yet.
Finally got a chance to try out the black painted steel today, it didn't work. My backstop is faced with weathered grey 2x12's and I could not distinguish the 12" black steel from the backstop at 200 yards. The white steel hanging next to it was visible (barely). The black steel was significantly hotter than the white steel to the touch, so maybe if you had a grass background or used something white or reflective behind it then it might work ok?
