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07/13/09 at 09:54 PM #26 To get a lathe tool cut to EXACTLY the same angle, that is to the nth degree, is out of human ability. But to get it perfectly square is easy. Elmer designed his bullet with square grooves for 2 reasons. One was for balance, and the other was for more lube in the grooves. I realize that a 6 1/2 inch barrel may not use all the lube, but a rifle barrel will. Every little bit more is a more accurate bullet. Elmer had many disputes over this subject, and I do not pretend to know as much as he did, but he would not back down on this subject. He stood FIRM. So much Lyman and he were not on good terms toward the end. He liked ,I know I am misspelling it Saeco molds because they kept his original design. He cursed the others for rounding and beveling his grooves, and making the front cutting band smaller than the others. They should all be the same.