Model M Hall -- 2lbs, 10 ounces,
Kelbly Stock -- 1lb 8 ounces,
(Old) Leupold 36X scope 1 lb (bit less, really)
Go to the Lilja site & look at barrel program
http://www.riflebarrels.com/articles/barrel_making/contoured_weight_calculations.htm
Or, for several precalculated barrel weights, look at the "stiffness" article
http://www.riflebarrels.com/articles/barrel_making/rigidity_benchrest_rifles.htm
Notice that the Maximum HV at 22 inches weighs almost 6 pounds. But you can have a HV taper and not use the whole 5-inches of the 1.250 cylindrical section. Probably what the Hall description is assuming.
Anyway, with the Hall M, Kelbly Stock, (old) Leupold scope, and max HV barrel, we're well over 11 pounds, without scope bases & rings, trigger, glue, etc., (but minus the little bit of metal lost in fitting the barrel). Change that to a full-profile 1.200 LV contour, and that 6-pound barrel drops to 5 pounds, 4 ounces. Now rifle weight is 10 pounds six ounces. Not quite low enough -- still need rings and bases and trigger -- but we're real close.
OK, the old Leupold is hard to find and expensive, but the Weaver 36X isn't much heavier, and you can get stocks as little as 20 ounces, though I think I'd plan on 22 ounces. And you can use a 1.20 barrel & not all of the 4-inch cylindrical portion, a 20-inch barrel, etc.
So it can be done, but you'll pay a big weight price for using the M. By that I mean all other decisions are seriously affected & you may have to compromise. Using the "S" saves 11 ounces.