Love my C308; over 1200 rounds thru it without a hitch, very accurate, amazingly little recoil, and easy to reload for. I use 150 Gr boat-tail spitzers over 40 Grns 3031, COAL 2.800; full-power military duplicate, but not a max load by any means. Use both German aluminum and Spanish steel CETME magazines interchangeably.
Been using once-fired NATO brass, mostly Taiwanese & South Korean, some German. Some I have even re-reloaded (ie, fired the third time) with no problems. For the first time, I ran 50 rounds of once-fired Lake City 2016 NATO brass, with scary results: About round #40, the shoulder & neck of one case broke off & stuck in the chamber, so the next round jammed in it. I checked all my fired brass and noted most showed a stress line in the same area, and a dozen had actual cracks. See the attached pic.
Everybody tells me how wonderful genuine LC brass made in US-of-A is. Don’t bet your life on it; from now on, I’m sticking with the good foreign stuff. How embarrassing!
Anybody have similar experience?