Go to your local hobby store, and pick up some epoxy microballoons. These are typically used for RC airplanes to lighten the weight of patches and fill material. Based upon my experience, it usually takes 3 to 4 table spoons of paint, using an HVLP gun, to fully coat a stock in one color. With that volume of paint, I would generally add 1/8 to 1/4 of a teaspoon of the micro balloons into the paint mixture. Some HVLP guns may have a problem spraying this material through, however they are so small most guns have no problem at all. To spray, turn the pressure in your gun way down, almost to zero, and turn the volume of paint way up. This result in the paint spitting out of the gun, to provide a typical splatter pattern. The splatter pattern, in conjunction with the micro balloons, will provide a texture very similar to a McMillan painted stock. Once the splatter pattern coat has been applied to the entire stock, go ahead and turn the pressure in your gun up to the normal setting and spray the rest of your color coat with the balance of the paint remaining. You can control the amount of texture and in one area by adding more paint to that particular spot, but the general feel will still be fairly mild and not overly coarse.
