Ok... so ima dumdass when it comes to anything that starts with ‘Reloading’. OK... got that outta the way.
Question #1: Can you reload steel casings?
Question #2: If you can - would you want to?
I forget which range it is here in the Houston area but their rules stated any brass beyond the shooting line becomes the property of the range. I reckon that makes sense. The Marksman range in South Houston has instructions to kick all casings beyond the shooting line - at which time it becomes their's as well. But I "think" it's ok to pick it up as well.A magnet makes real quick work out of sorting steel cases too. I am a brass goblin at my club so I scoop it up and sort it later.
Reloading steel is definitely a hobby within a hobby. There is utility in it if you have a specific reason. I got into reloading Berdan because I had a ton of surplus Yugo 7.62x39 brass cases and the primers were available at the time. I don't usually find much x39 brass on the ground at the range and couldn't see myself just scrapping this perfectly good NNY and Igman Yugo brass. So I bought a case of primers and the RCBS decapping tool and went to work. My decapping speed probably takes twice as long as decapping boxer primed rifle cartridges on a press with a Lee Universal Decapping Die. Other than that the loading process is the same as boxer primed cartridges.
I reload 7.62x39 steel cartridges for hunting ammo to be shot through an SKS. The ejector on the SKS dings the head of brass cartridges bad enough that the cartridge won't fit in the case gauge after being resized. Steel cartridges don't get deformed as bad as brass. I've got plenty of x39 brass but don't want it to get damaged in the SKS or lost while hunting.
I use Tula Berdan primers, 123gr SST bullets and H4198 to replicate the Hornady SST steel case round that was sold in 50 round boxes. This is a one time deal. Load them once and that's it.
I'm also sitting on 2k pulled bullets that came from 2 cases of Wolf x39 ammo that was submerged during Hurricane Harvey. I tried swaging a few to .308 to use in 300 BLK but the bases of the bullets weren't uniform and they'd enter the swage die off center and end up lopsided. I decided to load them in their original form to be used for plinking in my SKS. The problem is now I've gotta collect 2,000 decent steel cartridges on my trips to the range.
So....If anyone would like to trade their recently fired or collected 7.62x39 steel casings for some brass I'm your Huckleberry. A slight bit of rust frost is ok as it is polished away when tumbled with walnut and NuFinish. Polymer or Lacquer coated, Copper or Brass plated, all will suffice. I've got 6.5 Grendel, 6.8 SPC, 300 BLK, various other calibers and plenty of once fired LC 5.56 to trade.