Actually the shafts weighted 357 grains, with out nocks, inserts, broadheads, or anything. They were uncut, new shafts, which measure 32.5 inches. They were very consistent throughout the dozen. I don't know much about the carbon arrow manufacture process, but I believe we are all measuring correctly, but probably measuring different batches, made at different times. When I talked to the Tech at 3R's he measured probably 5 and got 365 grains, but he did leave the nock on. They are great shafts, spine consistently, and look good in my opinion. I did send mine back because I shoot a "girly" bow, and 30 grains more per arrow would make for some heavy arrows. Doug