Back to this.. I tried my new dial bore gauge last night. It's sensitive! 10 marks on it are equal to 1 mark on my other gauge. What I was coming up with was right around .0018.. maybe .0017. But I did compare every weapon of measurement that I have.. my .001 db gauge, .0001 db gauge, .002-.005 red plastige and the .001-.003 green plastigage. Really splitting hairs across the board. They're all close to each other but minute differences. Maddening! I have to trust the .0001 db gauge, since it's the most accurate. I've got a set of +.001 bearings hitting the door today and a set of 6.4 std hitting the door Saturday. I really hate that I can't use what came with the kit but it is what it is. Even if they were the right gap, they're still not the correct 2 hole 6.4 version. Even tho they'd probably be fine, my brain just would not accept it. I'll wait for the standards to hit, install them and check the gap. If they are still reading under .002, I'll have to do the split bearing and use the lower halves of the 1 over set. Right now, if used a 1 over with these readings, it would put me above 25. With a little luck (pfft) I wont need to open the 1 over set. So $300 later (not including the set I returned and awaiting credit, hoping to not get dinged for a restock fee)... I might get this thing buttoned up. Still have the daunting task of gapping rings. Rod bearings seem to be in spec.