I'm pretty sure we all came to the conclusion it doesn't matter. In fact, isn't there a BATF letter floating around that even says it doesn't matter?
I could be smoking them rocks....
First you'll need some supplies. I got everything I needed at Wal-mart except for one thing (the sponges). You'll need Acetone or Mineral spirits (depending on what the finish is currently and whether or not you want it removed), some 400 - 600 grit sandpaper, Rustoleum Flat Camo spray paint...
That is the sponge technique. I found a really great thread on the snipers hide forum (which I can't find anymore) that gave me those results.
I have since written a detailed walkthrough on how to do this style of rattle can job. It is super easy, but like it has been previously mentioned, the...