Not funny at all DB ,I am glad they are working for you. Problems of early NBT in certain calibers and weight coming apart is well documented. In my case it was the first year production of the 130 gr 277 bullets, I only had to shoot 1 whitetail buck 3 times with them to know I wouldn't try them on any more. Some where in there year wise Nosler thicken the jackets and improved them so they work like they are supposed to. They changed the boxes and the labeling scheme, I use the new packaging as a cutoff point, knowing I'll get the improved bullets. So far I've used the new 120 gr .284, 150 gr .277 and 150,165, and 180gr 30 cals on meat with satisfaction. You obvious got a lot with thicker jackets in old packaging, good luck. Magnum Man
