You have a fixed sight K frame. You will have to call S&W to find out the exact model.
you need to check if the barrel and see if it is loose even just by a hair if it is then you need to twist it to the point where it is accurate then take out the hold pin for it and reset it
For MANY firearms (but not all) the sights may be adjustable by the user. However, in the case of a shotgun with bead sights, or a revolver with fixed sights, they are not adjustable. Some semi=auto pistols have sights that can be adjusted by a gunsmith. Most rifles will have a user-adjustable sight.
adjust rear sight up for distance
IF IN FACTORY CONFIGURATION, The front sight is fixed and not adjustable. The rear sight is drift adjustable for windage changes - you need to loosen the set screw that holds the rear sight in place. From what I've found, it may take some doing to get that set screw loosened.
Depends on the firearm.
No. It describes the sight picture on the target.
By drifting the front sight
Via the screw.
Fire one round, note strike, adjust sight to that point, fire again, repeat.
cold , icy sight
Adv - longer sight radius Disadv - bulky