Howdy gents. I'm new to the forum but thought I would add this quote taken from Rich Cole a few years ago:
"686 and 682 actions are made from the same forgings, off the same machines, and undergo the same heat treatment. They are identical with the exception of cosmetics. The heavy frame which measured 1.585" across the shoulders was discontinued in 1993, hence the subsequent 682 actions have all been exactly the same as the field size 1.525" 686. There are differences in the wood quality, 682 barrels have vented side ribs and replaceable recoil shoulders (which we never change), and an adjustable trigger. The idea that the 682 is a "better" action is absolutely false."