Steel and aluminum cased ammo is not a metric for a weapons reliability. It is literally the worst, bottom of the barrel ammunition. Requiring the gun run on steel which will never be used in any serious self defense situation or situation where you're going into a threat environment, is dumb.
I'll say it again, like I did pages back. Small guns are harder to get to run right. You've got a lot less time to get the gun through the cycle of operations with. This pistol is designed to be a carry pistol, and run on premium self defense ammo. I'm not defending sig, in fact y'all were jumping to SIG's lube defense early while I thought it was a functional issue. So I was right lol. But hey, I gain nothing from it running or not running. But y'all want this wonder gun that runs on the shittiest ammo you can find, and also the premium stuff, AAAAAAND be a soft shooter with your 124 +p. Or the weirdoes running +p+. Or +p 147. You can't have both. I'd rather have it run 124 NATO and 124+p properly/as softly/flat as possible, vs run steel or 115 undercharged bargain box ammo. Because that's what I run personally, and I want my 124+p HST, Gold dot, and bonded Golden sabers to run properly. If it needs 124 NATO loaded ammo so be it.