Very interesting thread as I just got a 93 vintage 6.5" Classic 629 and I was wondering what the true diff was between the DX and the regular Classic. I had no idea the front site was spring loaded for easy changing ( thanks Stainz), I've only put a few quick rounds through it when I bought to make sure it went bang, now I look forward to working up a real accurate load. Might be my hunting revolver this fall.
