I did my encore with a Sawzall and crowned it with an inside the case mouth chamfer tool
Mine had a QLA on the end that was off center and it didn't shoot good
Taped it off, measured, Sawzall, "crown", done
It shoots much better now
I shoot a fixed 4x leupold
3 at 125yds before I cut it
4 at 125yds after I cut it