Well, I got out the powder coating gun and tried my hand at it. For the first trial batch I use a corrugated tray that had holes in it from the toaster oven. I enlarged the holes slightly so I could put the nose of the 311041 and the Saeco 41mag TC boolit. I covered the tray with aluminum foil and coated the boolits. I had cleaned the boolits before coating but it was obvious it was not enough. These were boolits that had been weighed and sorted so had been handled with bare hands. The excess powder coat ran down the boolits and stuck to the foil. Not a good situation!
For the second attempt I cleaned the boolits with purple soap and a toothbrush after sizing and seating gas checks on some of them. The PC stuck better when sprayed on. I also used an oven type rack from the toaster oven with 1/4" poultry wire secured to it. I opened some holes with a tapered punch for the noses of the 311041. These came out much better and I hope to load these tomorrow and shoot them.
With th 1/4" poultry wire the excess powder coat does not build up around the boolits and is easier to reclaim the excess.
I found a company that has a liquid that the powder can be mixed with and sprayed or brushed like convential paint. I left a message and hope to get a return call tomorrow. If the mix stays liquid in a container for an extended period it might be possible to dip the boolits on a hanger like the one in a previous post here. Sure would save alot of prep work.