This sort of looks like an 'average' calling range:

Board: 6s Kd Qh Th 3s
Dead:

equity win tie pots won pots tied
Hand 0: 42.857% 42.86% 00.00% 18 0.00 { AdKc }
Hand 1: 57.143% 57.14% 00.00% 24 0.00 { 66, AQs, K9s+, QTs, K9o+, QTo }

no?