Works great for bullseye - Sightron S30-5 Red Dot Electronic 30mm Sighting Device

I bought this Sightron S30 and mounted it to a S&W Model 17 for our indoor 50' bullseye league. I have been using Ultradots for ever, but thought I'd try a Sightron for this gun. First of all, the dot is definitely 2 MOA or slightly smaller, not 5 MOA like Sightron says. Second, to my eye, the dot is not perfectly round, but I have an astigmatism. Some higher-quality red-dots look similar to me, so that is not a knock on the sight, it's just my poor vision. When I say not perfectly round, I mean that it looks like a kidney bean to me. That does not affect my accuracy, however. In fact, it holds zero quite well, the adjustment clicks are tactile, and it's very easy to find and keep the dot during sustained fire. The glass is clear and sharp, and there isn't any negative magnification that Ultradots have become notorious for. I have not used this red-dot outdoors, only at my indoor range. With 11 brightness settings, I find I have to use #7 or #8 to get a dot bright enough to see without any star burst. I'll probably have to use the sunshade to use it outdoors.

All-in-all, it's a good red-dot for my purposes. I'm not replacing my Ultradots, but I'm not unhappy with the Sightron either.