Haven’t had a new rifle built in over 20 years. Building a new rifle for my young son, will only be shooting paper/steel at 3-600 yards. Have an unused rem 700 single shot action to build with and thinking an mbr stock to make it easier for him to shoot. My question is I see different thinking on how much weight a rem 700 action can handle for a barrel. Was thinking a Kreiger hv at 28” but that’s a 7.5# barrel. Would this put to much stress on a trued 700 pillar bedded in an mbr stock?