I can't speak for other calibers / weapons, but the Eagles malfunctioned EVERY time in my Mini 14 Ranch Rifle ( made in 1993 ). In fairness, I can't get ANY mag to work well EXCEPT Ruger's own mags. So it may be a finicky weapon. But after my experience with the Mini 14, I never bought another Eagle magazine.
Sorry, but that's all I know about them.