I have a newer Colt .38 Super 1911. My question is, with the Series 80 design, is it Ok to carry it with hammer down on loaded chamber versus cocked and safety on
I don't think this issue was addressed, but the series 80 colt has a firing pin lock. This safety device, added in the series 80 pistols, means the firing pin cannot go forward unless the trigger is pulled.
I have mixed feeling about this device as I have had the plunger drop down when the slide was cycling and jam the pistol. While this is very infrequent, only happened to me once, it is a failure mode that I wish were not there.
However, the classic series 70 action, without the firing pin lock, has killed any number of people in the past. It is hard to believe, but the M1911 dropped from enough height on a hard surface, has discharged the round in the chamber.
Slamfire deniers won’t believe such a thing, but that spring loaded free floating firing pin has hit primers with enough force to discharge the weapon. And that is why Colt put a firing pin block in the series 80.
And why my early Kimber Custom Classic is one of the few without such a device. Later, Kimber also added a firing pin block.
Still firing pin block or not, you have to hold the trigger back to let the hammer down. And folks have had accidental discharges when the hammer slipped under their thumb.
Enough accidents of the first or the second type have happened that the military and LEO have gone from single action pistols to double action, and now the final stage is double action only.
Overall, it is better to leave the hammer back and put on the safety when you have a round in the chamber.
If your primary weapon is a revolver, you won't have any of these problems.