The FBI had to use a mallet (no info on the weight of it) to get the 1873 copy used in "Rust: to fire with out pulling the trigger effectively breaking the gun. No info on if it was the hammer notch or or trigger nose either. The trigger nose is the smallest part involved so the most likely thing to break. I know nothing about now many times this happened with a Colt. I have already related the story of my friend shooting himself with a Ruger single six, an early flat gate edition. The mallet was a 160# individual and it was against a steel frame. No one ever knew of it except the doctor, his family and the few people he told of it. I would imagine it would be much the same with a Colt until the information age began. Now it would be spread everywhere if it happened.
By the way, Hanna Reed's trial is now on going for those interested. It will be interesting to see what comes of it. According to the news 6 rounds of live ammo found on the set is the prosecution's main thread but who know who brought it onto the set? There seems to be no evidence at all who did. Seller to the production company says he didn't sell it. Baldwin to the lowest grip could have brought it and we already know how truthful Baldwin is. it. One thing has been proved beyond a doubt. The gun didn't just fire by it's self. Of course we don't get to see all the evidence presented at trial in the news but from what I have read I would have vote to aquit. Sloppy investigation (who would have thought it would happen in NM?)
Lack of evidence or just over looked doesn't mean you should be found guilty on hear say.
When at the range and using bulk ammo ( no interest in keeping the ammo box in even rows) we always load all 6 holes. The gun is either in your hand being shot or laying on a table completely empty.