Just a note re the NM rifle in this post, and weight differences among the 3 flavors of M70s from the early 1950s:
National Match configuration (standard weight 24" barrel w/ Marksman stock) = 9.5 lbs
Match Rifle configuration (medium-heavy 24" barrel w/ Marksman stock) = 10.5 lbs
Bull Rifle configuration (heavy bull profile 28" barrel w/ Marksman stock) = 13.75 lbs
My guess /understanding is the NRA High Power rifle rules from the early 1950s had a 10.0 lb maximum weight - hence the configuration of the NM rifle in this post.
Not sure when the rules changed re weight limits, but just an fyi observation about the unique NM M70s from that era...
On EDIT: Not my rifle, but attached is what was described as a 1950 National Match M70. Note the sight blocks, etc.