Good news,

With my own rook, I handload 35Gr Hornady or Nosler projectiles with AR2207.

You can’t physically stuff enough enough powder into the case to get more than about 36000psi and I’m going with about 10.5gr in Nosler cases, which seem to have smaller capacity than Winchester or Sako.

If the period scope would hold zero, it would be brilliant.

I look forward to your results!