that was in Canadian military brass marked IVI that load proved to have some cycling issues I'm not sure if it's from too hot (2760) or the brass switch the same load to LC match brass and it was a little lower on velocity and no issues but higher velocity than I was looking for.
The first thing that's jumping out to me is the 2760 number. If that's fps with a 168gr bullet, you're very likely waaaay hot.
Something to consider with surplus brass is if it was shot in machine guns. If that IVI is machine gun brass, they're probably expanded more that what you'd want for reliable cycling in an M14 type chamber.
Where's Nez when you need him?
