What is the advantage of 25sst over 25 prc.Do you know smiths or barrel makers that do prefits in 25 sst.
It fits in a short action a little better without seating the bullet deeper. Preferred barrel blanks makes pre-fits for Sherman cartridges.
6.5prc 140berger hvld left 25sst 131 ace right. Both seated at 2.980"
If the op is set on the 25prc check out long range only. There's a few guys that have built them over there using Alex Wheelers reamer I believe.