I've not heard of lots of different gun failures. Never a receiver failure. Ever hear of a cracked engine block or broken axel/tansfer case? All cast parts, and castings tend to warp as the stresses come out of them.....don't know how ruger stacks up but have always been leary.
Parts like that are typically made of cast iron, which is considerably more brittle and lower strength than whatever steel, from which Ruger casts M77 receivers. Investment casting is widely used for all sorts of applications requiring high durability, such as turbine blades for jet engines and gears.
Given the litigious society we live in, I think it unlikely that a liability-conscious company like Ruger would sell a rifle prone to catastrophic failure.


















































