In addition to a tumbler you will need steel .177cal BBs and some newspaper and clothe strips. I moly-coated some .308 140gr Barnes X-bullets for the first try at moly coating. They came out great. Put bullets, BBs and a little moly coat in a tumbler. You may want to get a specific bowl for this or try putting the bullets, BBs and coating in a plastic peanut butter jar and then the jar in the tumbler. I have a real tumbler, not a vibrator and ran it for about an hour. Then, remove BBS, add strips of paper and run about 2-4 minutes. The paper absorbs excess coating. Finally, remove paper, add clothe strips and tumble again for 2-4 minutes, enough to absorb any excess coating but not so much that you take the coating off. Even if you do remove the coating, you can just repeat process. My bullets came out where if you handle them the coating doesn't get on your fingers, they shine silver and look real good. Can't wait to load and shoot. You may need to up the powder since the bullets get out the barrel faster causing a lower muzzle velocity. Good luck
Thanks Chris I talked to a gunsmith who has used it for years with only BB's. So I went out and got some and it works great. I've coated around 2000 rounds and was surprised how little you use. I'll not have another bullet not coated. Thanks again Dan..