I think its a Dead Eye thing, not just for duels. Haven't used Dead Eye enough to be able to answer your question, other than to say that, yes, it has to be possible because in many of the game play videos, you only see them mark one or two shots and then fire without waiting for Dead Eye to run out.
Probably says how somewhere in the manual. I'll have to play around with it some more.
yeah it's kinda frustrating, i'm doing the whole goody goody thing on my first playthru and only shooting the gun out of their hands. Well...earlier I had a duel and "painted" his gun hand, but it wouldn't let me shoot...so he killed me. lol Funnily enough, it's worked every other time up until then. I dunno, it's weird.
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