HMMM, noticed that myself and was trying to line up the top photo barl by using the wood grain? The barl line looks straight but there looks like sumpthin happens at the barl and frame junction? A steel draftsmans rule laid along the barl top might tell you sumpthin.
Sorry to burst your bubble, and Southpaws also, but the barrel is straight. Checked with a machinest's rule but more importantly checked it by sighting down the bore, straight as a silk thread. As for shooting high, don't they all? The 5 1/2" version does well at 50 yards and that is where I'll sight in the longer one also.
The problem was not the barrel, but the photographer. I am sure there is a way to get it so both barrels appear parallel but I don't know that trick. Fortunately, I shoot revolvers better than I do photograpghs!