The Winchester 70 "solution"
By the way, Winchester's "solution" to prevent CRF extractors breakage is quite interesting, and it illustrates how 'twisted' the issue has become.
Using pictures of my own Winchester 70 Stainless Classic .300 Weatherby, made in New Haven in the late 1990's, one can see, as previously illustrated, that clearly this generation of Winchester CRF extractors are not beveled (I do not know for the pre-64 models):