Imperial Dry Neck Lube already has "balls".
Imperial Dry Neck Lube 1 oz Powder
http://www.midwayusa.com/product/319390/imperial-dry-neck-lube-1-oz-powder
The easy way to apply dry neck lube to case necks. Simply dip the cartridge case neck into the ceramic media. The media consists of high density ceramic spheres that are pre- charged with Imperial Dry Neck Lube.[/COLOR] (powdered graphite which is nothing more than fine carbon particles)
Who knew? Thanks for the tip.