Try Varget or RL15, 37-38 grains. I've yet to see a 6.5x47 that won't shoot 37 grains of RL15 with a 130 bullet.
FWIW, your velocities seem pretty slow. Is this a new barrel? I gained about 100 ft sec after a couple hundred rounds on mine.
I've used 4350 a bit and with great results. I've used...