I'm shooting 140gr accubonds at 3300fps with 70gr RL-22 in my A-bolt eclipse. 26"bbl. Started at 66.0 grains and moved up here. Found that 67.5 was incredibly accurate (<0.3") but was very dirty. I hit pressure signs at 71.5gr.
I'm using WLRM primers, once or twice fired brass and neck sizing only. My OAL to the lands is 3.353" and my loads are at 3.338".
If you're at 67.5 or 68, go up slow. I shoot this on cool days and let it cool between strings.