Re: Hs precision?
I have an HS, but mine is a prohunter lite. With the loads it doesn't like it runs around 3/4MOA and with the loads it likes it shoots under halfMOA. Thats a rifle that it 6.8 pounds scoped. It fit's exactly what I wanted that rifle to be.
Comparing apples to apples a custom is going to be very close in price. A stiller action is a grand, Timney trigger 175, bottom metal 300, barrel 400, stock 500ish, muzzle brake 250. Say 2600 that leaves 400 for the smith for chambering, bedding etc... Since I paid 3000 for my HS. If you look at any of the off the shelf customs (Borden, Rifles inc, Sisk, NULA etc) you will be in the same price range.
All that said I would not go to HS for a long range rig. I would go custom, Stiller or BAT action, Lilja barrel, A5 stock, Jewell trigger, not sure on which bottom metal. But you get a rifle setup for exactly what you want. HS doesn't really build a rifle that seems to fit into the usual long range rig on this site.