Colt Diamondback, currently back at Colt (again).
1) at about 38,000 rnds bolt spring broke
2) at around 42,000 rnds out of time (probably out of time earlier, just I did not know any better)
3) Now at around 45,000 rnds, bolt screw head broke. Also haveing it retimed "again". Colt says it needs it again. By the way, $38 to ship it there, $79 to fix it (I will authorize the repairs at 10am this morning), 35 days to fix (estimated) and another $30 to ship it back. I only paid $225 for it originally 26 years ago if I remember right.
No other revolver I own (out of the say 20 or so) has this many rounds or problems. I think after I get it back, it will see only occasional use at the range and I will shoot my pre-war 38/44's more!