The BDL's are marked BDL right behind the lettering 721. They have upgraded wood and they are sweet.
According to Lacy’s book, the “BDL” receiver marking started in 1955. Prior to this date, “B” grade rifles may or may not have the marking.
“Letter grades were not a part of the roll marking on the receiver. The letter markings, when done were by hand with an engraving tool or stencil. The author has not been able to confirm that the BDL lettering was uniformly applied, and in fact, it appears it was not.” “Some B and BDL’s are marked on the receiver, but many are not.”
My “B” grade .30-06 from 1950 has no receiver marking, but the stock reciever inletting is stamped with a “B” letter and “HC” for a high comb.
