It’s not my experience that Norma commercial brass is significantly heavier than Win, Remington, Federal or Nosler. Used it quite extensively in 223, 22.250, 220 Swift, 243 and 25.06. Never had a problem switching max loads between any of the commercial brands. Did see about a 5-7 grain weight difference between Norma commercial and Norma military, but when it came down to case capacity there was only a .5 grain difference between the 2.
