35 Whelen
Finally got out to the range yesterday and fired my 7600. Started with 60 gr. of Hodgdon BLC-2 and 200 gr. Hornady PSP. Worked up to 61.5 gr. in .5 gr. increments. No high pressure signs and all brass ejected smoothly. Didn't feel like trudging through the snow so only shot at 50 yards. Ended up with point of impact 1" high.