Looks like HB-RE005 is probably not usable as a 25R standin, I'm definitely no expert but the shape is sufficiently different that I'm going to go with the Ofmega cones.
Campy Record 25/R: 7/32" bearings, 15.8mm diameter, 11.5mm length
Ofmega: 3/16" bearings, 16mm diameter, 12mm length
Campy Record HB-RE005: 7/32" bearings, 15.83mm diameter, 8.93mm length
