$1 per round for brass cased 7.62x39? Dayum! I cap brass 5.56/.223 at $0.35 per round.
I'll read closer later and respond, but I wanted to chime in on the cautions of mixing steel cases and brass ammo. At least my understanding. The steel cases don't expand in the chamber like brass, so carbon and other stuff can get blown in and accumulate in the space. Then the problem (at least as many have reported) is when you follow that with shooting with brass ammo. The idea is that since brass expands when fired, if the AR chamber has build up, that can lead to extraction issues. To help that, guidance has been to clean chamber if shooting brass after steel.
That said, I've seen many guns to back and forth and no problems. And I've seen other guns choke. Personally, I don't shoot much steel cased. They don't function well in my mid-length ARs. I put together a carbine length AR that was with a known overgassed upper to test a theory that overgassed uppers can overcome some of the many reported issues with steel cases ammo. Particularly the dirty chamber thing as well as cheap ammo like Tula being underpowered. However, since I completed the gun, I haven't been able to find Tula cheap. Last time I saw it, it was selling at close to $360/1000, which was MORE than M193! Wtf? Haha.
I also stay away from lacquer coated ammo as well. Heard many bad things about shooing that's stuff, but I have yet to try it myself.
Sent from my iPhone using Tapatalk