They pulled it because the cast receivers couldn’t take 308s.
and did RUGER tell you that? because if THEY didn't, I'm calling it BS...
The story I've heard (and believe) is that Ruger abandoned the XGI project because they couldn't get the prototypes to shoot as accurately as they required.
Remember Bill Ruger Sr was still running HIS company in those days and Bill Ruger was an opinionated fellow about a great many things.
According to the story that was circulated at the time, Bill Ruger killed the gun, because he wasn't going to have his company put out what he felt was an inferior product with his name on it.
The very first (and only time) I ever heard anyone state Ruger's "cast receivers can't take .308s" is your post.
That being said, there have been cast recievers that "couldn't take it" but not because they were cast, but because the maker didn't make their casting "good enough" for the job.
Casting has been around as long as we've been melting metal, and its just a process that covers a huge range of possible results. Very easy to cast low quality stuff, not so easy to cast high quality steel, but Ruger knows how, and does it.
They don't need a short action to make a .308 Garand, nor for any other chambering where the cartridge is a derivative of either the .30-06 or .308. All you need is the barrel.
If you want to convert an M1 Garand to 7.62mm NATO you don't even need a new barrel, all you need is a chamber insert. IIRC the US Navy did that, and used those rifles in competition for some time.
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