Oops, I should also mention that the size of the stock (interior volume to fill) and the inletting specs account for most of the weight variation in the stocks. A skinney little slender pattern like a RMR or a Rem. Compact inletted for a long 700, BDL floorplate and a magnum contour barrel will weight a lot less that a big Remington Hunter or Lazzeroni Thumbhole inletted for a short 700, blind magazine and a mountain rifle barrel contour. We havn't been able to change the laws of phyics and the more material you cut out of a stock the less it weighs.
Dick