Were you doing a bunch of windage adjustments on your sights when you shot that target? If not then what I’d suggest first, is to find a load that shoots a much better group before you worry about finding a different sight. The target you posted is terrible. Once you get a “close to cloverleaf” group at 50 then start filing or changing the sights. You might be surprised that sometimes the POI might go up and down with just different loads.