fal, HS: According to my calculations HS' loads go into low earth ortbit, and there have been unexplained strikes on some shuttle flights. There should be little danger (except on re-entry, but 200gn. bullets should burn up before reaching sea-level... were a bit concerned here in mountain country)
I wonder how the 454 Casull would fare in a Woodchop? - naturally, would be limited to five shots (in the Raging Bull) - no question of using speed loaders as the firing hand is usually (temporarily) crippled for a while after one full cylinder. But come to think of it, if the team is four shooters, the heavier artillery could 'soften up' the log for the faster wimpy guns...
Hasta pronto amigos!
El Chimango Pete