Originally Posted by
WS6
Z6i and kahles were the same to me optically. The kahles had a more reddish reticle while the Swarovski was more orange. Very similar brightness (brightest of mentioned). The K16i has only auto off after 4 hours. The z6i, has more auto off features. I give the top position to k16i for features. It's neck and neck optic and eyebox and illumination wise. These two scopes are a 10.
Next is the vcog. It is a 7. The eyebox and illumination are notably inferior to the European twins. The diopter shift is notable between magnification extremes. The picture is not as "flat". I felt that it was not a true 1x, but more 1.05x or something because of this. Close enough for real world use, but if you're reading a book with it or wanting a technical comparison...however...the mount is integral/keyed and the illumination is aa powered and allegedly it is more durable. Just as robust as a acog according to trijicon. These things could potentially place it in a higher position than the European twins depending on your intended use.
Then comes the Vortex and leupold. They were very close for me optically. Both had usable eye boxes, but they were smaller than the vcog by a very slight margin it seemed. Personally I liked the glass on the vcog better. Illumination on the Vortex was similar to the vcog. Maybe a tiny touch brighter, or maybe not, as the illumination was just a dot ant maybe being so small it looked brighter due to contrast? Regardless, it was as good or better. I did not get a chance to see mk6 illuminated (dead battery on display optic). Both demonstrated diopter shift, but a bit less than the vcog. Say, 75-80%, as much. All in all I found them very very similar to one another. I'd go with the mk6 because of reputation. I could not justify it based on performance and price. These optics I'd rank at 5.5-6.
Ymmv, everyone's eyes differ.
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