I put a red dot sight on my SW 325 Thunder Ranch and had it at the range for the 1st time. After I got it sighted in, I shot the target attached. Pretty good for me. It was at 50' in SA.
The red dot is a Vortex Venom 3 MOA and the mount is an Allchin Smith & Wesson Mini STS Scope Mount.
Some observations about using a red dot:
1. All you have to do is put the red dot where you want the bullet to go and squeeze the trigger. No lining up the front post to the rear sight and getting the front sight on the target.
2. Works well in all lighting and target color.
3. After some practice, it is faster to pick up the red dot and put it on the target than regular sights.
4. The 3 MOA dot size worked fine for target at 50'.
5. It might not allow as precise as target lineup as a regular sight. The red dot tends to cover your target.
Overall, I am very happy with this combination as my home defense gun and for range shooting.