Very nicely done... What version of the 657 do you have?
It's a 657 no dash with a 6 inch regular lug barrel. It appears to have the TT & TH, but the previous owner must have had the trigger surface ground smooth- which I much appreciate. The previous owner also had it magna-ported with the regular twin ports, an action job, and the extra ball detent lock-up added. It shoots great.
...I shoot better DA than SA when shooting DA guns...
Two weeks ago I had a target out at 35 yards and with three different S&W .41s, 657 4", 657 MG and a custom 5" 657 with six rounds per gun put 17 of 18 on a paper plate...the one that missed was by a 1/2"... and now my eyes suck also...
When shooting with MacKay Sagebrush in Idaho in 2013 and 14 we shot out to 780 yards DA...
Bob
Is your Mountain Gun pre-lock? if so....sweet! At the moment, I do not own any 5 inch S&Ws. I had a 627-0 that had a 5 inch barrel and I really came to like that length as an all around field gun. But I traded it away to another S&W forum member for a 4 inch Model 16 in 32 H&R.
Oh, and shooting out to 780 yards must have been a blast, pun intended