The three dimensions shown in the Nosler Book, .535, .538 and .314 are all dead nuts on the three I checked. I put a dummy round together using 2 pieces of the brass in question and there is no resistance at all when closing the bolt. I used 63 grains of RL 22 for the 130 grain AccuBond, 2 grains below book max and 60 grains for the 150 grain Partition, 1 grain below book max. No extractor marks or difficulty opening the bolt for either load.