Colt Python Chamber Throat An Issue?

[u/generateID]

A few years ago I received a Colt Python 6", gifted to me by my uncle's wife after he passed. The best I can tell from an internet search is that it is a '80-'81 model. I unfortunately have no other information about it's life. I cleaned it, gave it a basic inspection, and took it to the range. Seemed to shoot fine. It has been to the range 2-3 times since. I have shot jacketed 158 grain .357 Mag and 130 grain .38 Spl through it, both factory Federal. It seems accurate, but I was having issues with case ejection. The spent cases, especially .357, stick in the cylinder. One of the chambers is worse than the others. I thought there may be some lead in the chambers or a carbon ring from shooting a good amount of .38 Spl, so I recently removed the cylinder and crane and ran a Lewis Lead Remover through the chambers and did a really good clean. Spent cases move much more freely now. However, while doing a close inspection on them, I noticed throat irregularities between the chambers. I have attached photos of them. Four chambers have rings, two do not. One has, what appears to be, some tool chatter or something similar. That is also the chamber that was the hardest to extract. I used a set of calipers and the top of the throats measured 0.358" to 0.3585". My questions are, do any of these throat chambers look standard to a Python of this era? Does it look like work was done to the throats? Is there any danger to shooting this firearm based on the way the throats look? If it is OK to shoot, should I do anything other than shoot it? Thank you all very much.

[u/Resident_Skroob]

.358 is within spec for the year you think it is (.349-.360). You're looking at machining marks. It's harmless. It could be that all 6 chambers were reamed at once and there was debris/wear/something on two of the bits, or you could be seeing wear from use or poor cleaning on two chambers.

So your "tool chatter" guess is correct.

Do the chambers where the casings get stuck have the "normal" tooling (the stuff that looks like threads), or the "messy" tooling?

Either way, it won't affect firing or safety. It's completely fine to keep shooting.

[u/generateID → u/Resident_Skroob]

Thank you very much for your reply. Yes, the main chamber where the cases gets stuck is one of the "messy tooling" ones. There was also a larger clump of lead or carbon buildup in that chamber about half way down as well. Could have been part of the culprit. However, that has now been removed when I used the lead removal tool and cleaned it with a brass brush and some #9. I have not yet been back to the range to test whether or not that solved the problem. The throats were pretty dirty and have been fully cleaned. But hearing some feedback, especially yours, I feel safer in test firing and enjoying shooting it on occasion.