Starline brass out lasts any brass you can buy or find at the range period. Of course you have to buy it rather than pick it up off the ground. The upside though is you know what the brass will be for your loads since different brass loads and performs differently and you know you will get your money's worth from it. For me, Starline brass wears out in one way, the primer pocket gets too loose to hold a primer. You can swage that pocket to get a few more out of it after this but eventually it simply wears out. The sides don't split or crack though, at last in my experience and that says a lot about the durability of the product.
you can buy direct from Starline, that's what I do. Saves me money that way.
Starline Brass - Maker of America's Finest Handgun Brass
Star-Line is great brass......save your some cash and get some mixed stamped once fired for around 70 buc's 1k......you'll get 40 + reloads out of mixed before they split....
...You can swage that pocket to get a few more out of it ...
Starline Brass - Maker of America's Finest Handgun Brass