Cool vid, and great idea.. I chuck my .308 brass in a cordless drill- they just fit the chuck, the shoulder and neck exposed, spin them slowly in the propane torch for around 9 seconds out towards the end of the flame (Lapua brass) 7 seconds for Nosler brass, I am at the same time watching for the brass to just start to change color, then drop them out of the drill onto a terry cloth towel. Do not miss the towel and land on the carpet. The time exposed to the flame will vary depending upon the torch, mine does not adjust to a pinpoint like the video above so it takes longer than normal. I anneal after every firing. I've not had any case failures other than loose primer pockets after 10 - 12 firings or so, and seating force seems really consistent. For my 300 Win brass, I chuck up the fixture I use to turn the necks in my drill and everything else remains the same. Practice with some old brass first until you feel comfortable doing it for real.