What was the mass missing from CE-399?
Taking the average of the three WCC 6.5mm bullets weighed by FBI agent Robert Frazier and subtracting the weight of CE-399:
160.85 + 161.5 + 161.1 grains = 483.45
483.45 ? 3 = 161.15 grains
161.15 - 158.6 =
2.55 grains missing from CE-399