Can anyone explain to me the physical differences between these two revolvers? I've got a 686, but looking at the sites that offer these for sale, they look to be very similar. According to the serial on mine, it was made in 1980 and it's my understanding the 676 was made until that year. I'd just like to know what the differences are. I've got Excedrin headache #666 trying to find the answer.
Thanks in advance.