Love my Shilen barrel (1:10”) 250 Sav Ack Imp Ruger 77 Mark II. After hearing much about the 6.5 Creedmore I had no desire to build or buy one, but it did cause me to wonder about how a 250 Savage, Improved or not, might do with a faster twist barrel. However a 10” twist handles the 100 grain bullets I shoot extremely well.
For what it’s worth I might suggest a custom reamer spec’d to better fit the 250 brass available today. Pick your desired brand of 250 brass and carefully mike the diameter at the web area and use these measurements to design the reamer. Why? Winchester 250 brass is very small at the web area diameter compared to most 243/308 standard brass.
It’s always possible someone’s reamer cuts a better fit chamber than the older Clymer reamer I used, but it’s worth checking out ahead of your build.
Last edited by Alaninga; 02/06/20.
