This ram looks very similar to mine. The horn structure, length and mass seem to be very similar. This one is a little older. Mine was 6 1/2. I make this one out to be 9 1/2? The 4th anulus seems to be very short unless I'm mistaken and only appears to be an anulus? The pach of fur running between the bases looks slightly wider than on mine and they were 16 4/8 and 16 2/8. These I'll guess to be about 16. The horn length on mine was 38 1/2 and 38 and I am guesing the same one this one. There looks to be slightly more mass toward the ends of these horns and it is broomed slightly more than mine.
Mine scored 185 1/8, so I'm going to guess 185 for this one also.
Very nice ram, congrats to your dad