Thanks BSA, I was thinking that they started the Featherweights in 52 and the standards later.
Yep, no problem. According to Rule, it was one of the changes implemented in mid '52. Of course that doesn't mean all of them were drilled after '52. I've seen some 1953 rifles with the solid bolt knob, even fwt rifles made in '53, but the change implemented was for all model 70's in mid '52. A lot of guys think only the fwt rifles were drilled, but that's just not the case..
