Experimenting more with taper bumping. I used a PTG 310 diameter .75 degree per side reamer to cut both the PTG die body and throat of my 308 Winchester short chambered 1-10 twist Shilen barrel.
Throat was cut deep to seat bullets long into throat. Gun shoots more consistently accurate now, but recoil is bad because of light weight rifle. Now I know why you need a heavy rifle to shoot more accurately on the bench.
Bullets left to right: LBT 310 175 .75, NOE 310 165 (30xcb), NOE 311 174 (Frank)