I have the mountain gun in .44mag, 45 acp and .45 Colt.
The .44 is a 629-2 that I've probaly shot 15,000 rounds thru. I had to send it back to Smith because of a loose trigger stud, it's semi retired now. I carried this gun for years in my work truck while logging in Idaho and when I was guiding or roaming in Alaska, it was definetly my go to gun. I shot mostly with 8.5gr of unique under a 250 Keith SWC my hot load was 21.5 grs of 296 under a 280 LBT WFN.

The .45 Colt has replaced it now, loaded with a 250 gr. XTP over 20.0 grs. of LilGun it will handle any chore in Idaho. I shot some ground squirrels with it today.

The .45 acp sees a lot of use in local steel matches, has an excellent double action and is very accurate.