Friend Of The Blog, Tam, over at View From The Porch is doing one of her revealing 2000-round handgun torture tests. Succinctly, over time shoot 2000 rounds of a variety of ammo through the chosen gun, with no additional cleaning or lube, and chronicle the results. What has been fascinating, to me, is that as of late she has been noticing that steel-cased ammo, in certain magazines, is having issues where the rounds bind up and rattle around in the mags. As best I can tell from reading her posts, this is a problem that doesn’t seem to happen with brass-cased ammo..at least, not nearly as often as with the steel stuff.
Why is this interesting? Two reasons. First, steel-cased stuff is often a tad cheaper and when you’re laying back a lot of ammo every dime matters. Secondly, same rule for mags…sometimes the non-OEM mags are cheaper than the factory ones. Combine those two statements with a crisis where you may or may not have any choice but to use whatever magazine and ammo you can scrounge up and you have a potential for a pretty significant failure point.
As I’ve been reading the posts, it appears that the problems have been in the non-Glock mags. Of the non-Glock mags, the Magpuls perform best but are susceptible to an infrequent issue with the steel cased ammo. The factory Glock mags seem to do just fine.
The obvious lessons would seem to be: don’t shoot steel cased ammo if you can avoid it, and use factory Glock mags. But, as we know, here in the real world we’re faced with ugly choices.

I’m a snob. For my autopistols, the preference is: US brass ammo, quality European brass ammo (S&B, Fiocchi, Norma, etc.), and at the bottom…this stuff. But…if it’s all you can get…….
My own policy with steel cased ammo is to shoot it only in guns designed for it…basically Commie calibers in Commie guns. I’ll shoot steel 7.62×39 out of an AK with no reservations at all…but I’ll only shoot brass 5.56 out of my AR’s. (Yes, I know, I know…everyone says it’s fine to shoot steel cased ammo out of your AR.) For me, between reloading my own ammo, and having career goals that are a bit higher than WalMart shopping cart wrangler, I can afford to lay in a few cases of brass-cased ammo. But…as I said…sometimes ya gotta shoot what’s available. So, from that standpoint, it looks like the only reliable way to have the best of both worlds, brass and steel, is to use the factory Glock mags. Fortunately, we’re past these days and you can get a nice, shiny, factory Glock mag for about $20. So…go get a dozen.
I hope Tam explores this sort of failure further in her shooting adventures. As far as I can tell, it’s not something I’ve seen mentioned anywhere else. Some US manufacturers like Hornady are offering steel-cased ammo these days and I’d be curious to see if the problem persists with their offerings.







