system
Given the following post, respond as if you're commenting on Reddit:
human
[Red Dead Redemption] Why does Ross not shoot Jack with the shotgun instead of dueling?

In the final mission, Jack confronts Ross near a river bank hunting ducks with a shotgun. After a brief introduction, Jack tells Ross he's come to kill him, Ross tries to dismiss him but Jack persists and a duel starts.

Why does Ross not just fire the shotgun right in his hands at the unarmed Jack? It's not like he has any honour, (betraying John, disrespecting his corpse,Dutch's corpse, holding Jack and Abigail hostage etc) and there is no one watching. Why take the gamble with the duel when he could just kill Jack on the spot?
gpt
He's hunting ducks, so the shotgun is likely loaded with bird shot.  It probably wouldn't penetrate to any vital organs when fired at a human. And even if it did and eventually killed Jack, it would probably take a while and Jack would have lots of time to return fire with his more lethal weapon.