As an FYI, I had an Accidental Discharge with my pre-warning M77 a while back. No problems, no one knows it was an AD except me. Pointed down range, preparing to shoot, and it went when I closed the bolt. Anyway, it turns out there was a recall on them. They will sometimes go off for "no reason".
The Fix is easy. Call Ruger, give them the SN so they can verify date and they will send you out a replacement screw. It has a little ball of teflon on it to prevent it from backing out. Very simple fix.
They also tell you the exact date your rifle came off the assembly line. My rifle is almost exactly 10 years and 2 months older then me. Neat!
__________________
"It is useless for the sheep
to pass resolutions in favour of
vegetarianism" ~ R. W. Inge
