I'm sure, though I don't have one, that Sightron is a fine scope. My logic would be a bit different when comparing it to a Leupold. I wouldn't buy it because it was a bit cheaper. Rather, I'd buy the Leupold if it was only a bit more expensive. To me, Leupold is a known quality and I would inherently trust that it would work for me (or they'd fix it for free). Lately folks seem to feel that Leupold is overpriced. But since the company makes scopes from low price to very high price, how can it be said that they are truly overpriced. My most expensive scope these days is a Vortex Viper PST 4-16 FFP. I like it a lot, but the glass is not as good as VX3 Leupold glass. So is the Vortex overpriced because of that? If you know what you are buying before you buy it, and you are happy with making that choice, then you didn't pay too much.
That said, whatever satisfies us is all we need. For years (25 years ago) I had a 6-24 Tasco on my old 220 Swift. I only complained about it when the light was dim. In good light it was all I ever needed. Never broke. I could shoot bugs off a target at 200 yards.