Soooo One of those Noobs here....
Yes, there is clean brass and then there is shiny brass. However if there are people that want to have a mirror like finish on their brass, what is wrong with that? Most of us that reload are doing it as, let's face it, a hobby or to support something that we enjoy doing. There are a few weirdo's out there who feel that the zombies are real and "Need" to have 10K plus rounds to fight them off. If someone wants their brass to be beautiful before the next time they get it dirty again, then why judge. Yes we all know that it has no impact on functionality, but hey to each his own. Back to hobbies.... Let's take RC airplanes for example. Generally speaking do people buy one of these planes, tape it together, throw a motor in it, and go flying? Nope! They buy a kit, meticulously put the plane together making sure everything is perfect. They buy lots of little accessories like paint, electronics, propellers, fuel, boxes to put the plane on, etc. Then after all that, they make a pilot to "Fly" the plane with an authentic period costume and sunglasses. Do you ever actually see the pilot when it is in the air? Probably not. But hey! It looks cool! And if you want to make a replica of the Red Baron, then by god make his scarf freaking awesome!!!! Point being, if you want to make every single round to absolute, beautiful, perfection then so be it. If I have 1K rounds of twice fired loaded ammo, and someone else has 1K rounds of twice fired ammo that is bright and shiny, we still have 2K rounds of AMMO that we can go have fun with and make fun of that weirdo preparing for that zombie thing...
OK, so you're a reloading n00b, yet you claim most reloaders are wet-tumbling with stainless media. Have you taken a poll of all the reloaders you know? If you were to suggest that more people than 10 years ago are wet-tumbling, I could buy that...but do you have ANY proof that more than 50% of reloaders these days are getting away from dry media?
No, you don't. Because it's not true. Heck, there are probably more guys out there who reload, and have never tumbled any cases, wet or dry, than there are guys who use stainless media and a wet tumbler. I mean, you do realize that all you really NEED to do is make sure there is no debris on the outside of the case...right?
I'm not saying there's anything wrong with polishing brass until your wife can put on her lipstick with it. If that floats yer boat, go for it! What I'm telling you is that shiny brass serves no real purpose, other than being easier to find on the ground.
For the record: I'm calling BS on jblomenberg16 and his M1 Garand story, as well. Not buying it. When you dry tumble cases, then sift out the media in a purpose-made container, there is NO media left in the cases to get blasted down the barrel. That's hogwash, but if he'd like to provide a link to a scientific study, or even a subjective article from one of these shooters, I would be happy to read it.
As for the carbon buildup on pistol cases, think of it this way. If your brass has a smudge on it, take a guess what your barrel and action look like?!
I went to a local range when I lived out in California. This old-timer by the name of Al was already there, shooting his 6mm PPC. He had a reloading setup right there with him, at the bench. He had maybe a couple dozen cases with him. He'd shoot a group of 5 and then reload them. He was shooting the cases over and over. In-between, he wiped them with a rag, then neck-sized them. His targets were the size of a postage stamp...and his groups rarely exceeded that dimension.
Clean ammo is good; shiny ammo is STRICTLY aesthetics. Actually, there is one caveat to that: If you're concerned about possible neck or shoulder splits, making that area very shiny can help you spot problem areas. At the same time, making the head of a bottle-necked case very shiny can serve to hide incipient case head separation. For this reason, I will sometimes polish the neck/shoulder of certain batches of cases, to watch for this.
Other than that, making cases shiny is just something n00bs do when they first start loading their own instead of shooting factory ammo. Maybe it's some kind of residual angst over the whole process...I don't know. When you've been making your own ammo for 25 years, like I have, all you care about is perfect function and exceptional accuracy. "Pretty" is for wedding cakes and your wife's lipstick.