I have a Ruger #1 in said chambering - 25.5" bbl (cut and recrowned the 26" factory bbl.)
10% case capacity increase to BASE OF NECK over the parent case. Note that the shoulder and base of neck are moved forward. The #1 has a long throat. It was a rechamber of a boring old '06 and my first foray into wildcatting.
2,950 with 180 gr and 2,750 with 200 grain bullets - Over an Oehler 35.
Use 30-06 AI data and work up from there.
