FWIW, according to Rule: The G prefix "was implemented in compliance with new Federal regulations requiring a letter-coded serial number as an expedient means to manufacturer identification".
But, while it is "the bible" on the Model 70, Rule's book is not without error. As an example he says the G prefiix occurred in 1971..
And as winchester70 says, it doesn't really matter at this point....you seem to be the only one all worked up about it.
Which is why he got butthurt. And now you are, too.
