I know a gunmaker who was once told a model 70 bolt has a weakness, which is that the handle is soldered on a spline and that he (the guy, a PH) had seen one come off under duress. The gunmaker had never seen nor heard of this issue ever happening (and he had built a LOT of Model 70s). About a month later he was working on one and felt something weird while working the action - sure enough the handle was loose, the solder washer that was normally placed on the spline before heating was left off and the handle became loose. He has pinned every handle to the bolt body on every model 70 through the shop since then.
Crap can and does happen. Doesn’t mean it happens a lot, but it does happen.
Crap can and does happen. Doesn’t mean it happens a lot, but it does happen.