Seating the full diameter at the base (boattail excluded)of the bullet past the neck shoulder junction (Donut/constriction) is not conducive to good accuracy.
I just see a lot of shooters with a .107 and .090 freebore. Since I am going to stick with the 105s to 107s I was wanting to keep the freebore close to allow for erosion.
I wonder that these shorter freebores I am seeing people using are a 3/4 lead which would be a longer throat due to the shallower angle.