Not to derail my own thread, but I did read the chapter on cast bullets in my Lyman's manual last night per Kevin's suggestion. There's several interesting chapters on reloading for big bore revolvers I had never paid attention to (elephant cull hunts with a .475 Linebaugh - good stuff there!).
Another question though,about gas checks. When I ordered those Cast Performance I noticed that in some calibers they include gas checks on bullets of the highest weight. For example, .44 bullets at 300 grns come with gas checks (and a lot higher price), but 275 or 240 grain bullets do not have them.
It seems like the lighter bullets would need the gas checks more wouldn't they? At max loads they'll be used with higher powder charges and shot at higher velocity. Why do heavier bullets need the gas checks more?
