Let's keep attacking that guy that keeps showing examples he's done (and on demand) that all stainless steel polishes the exact same way.
Well, not really. Cast steel often has very tiny voids in it that will show up when a mirror finish is done.
That aside.
You can post a million pictures of revolvers you have polished with a rag and polish. It doesn't change the fact that it simply isn't possible to achieve the same thing that can be accomplished with the proper tools and a proper approach.
I don't know if you're intentionally ignoring what you've been told, but a number of folks, including me, have indicated that they have polished steel before. We know what you are doing and we know the results you are getting. We know what can be achieved with a rag and polish and what can not be achieved. Through personal experience. Your fingers time, and rag and the polish you use are achieving the same results people here have achieved.
It is not the same thing that is achieved when starting with a properly flat finish, then using the proper tools and grit progression to achieve a truly great finish.
Off the shelf guns (especially the lower end ones--I'm including some revolvers I own, so nobody freak out and start going off about about gun snobbery) almost never come from the factory with truly flat surfaces, sharp corners, with no waves in the surface (I'm talking actual dips, not swirls), etc. Those kinds of imperfections can't be fixed with a rag and polish, no matter how much time is taken.
Can you get a really shiny finish? Yes. I've done it. Will it be like one that was done by someone starting from an item that was intended to be polished to a high finish from the start, who uses the proper tools, who has a high level of skill and who follows a proper grit progression? No. It's not going to happen.
The problem is that your level of expertise and knowledge of the topic is insufficient for you to properly assess your competence of the topic.
There are entire books written about polishing metal. How many have you read? Do you think that they all have one page and begin and end with how to pick a rag and a brand of polish?
If a person knows very little about a topic and accepts that their knowledge is lacking, they can learn about it and potentially become very knowledgeable if they wish to put forth the effort.
If a person knows very little about a topic but believes they already know everything they need to know, they can't learn about it. What else could there be to learn?
Right now, you are in the second category. Until you accept that there might be more to the topic than you already know, this exchange will be completely valueless to you.