In the three barrels I’ve got some data on (a Bart 7.5, a Krieger 7.5, and Krieger 7 - all 26”), 35.5 ends up about 2820-2850 with a 109, for what it’s worth.
I ran the Bart up to 37.0, but best groups and velocity spreads were below that. But that was 2930 or so, I was targeting 2850, so lower...