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Title: Won't stay zero'd
Review: This product states it is for guns up to 357 Magnum. I have this mounted to a Ruger GP100 and the dot drifts from shot to shot, primarily down and right (causing POI to go up and left). This happens even with mild 38 loads. As a test I used a bore laser sight and set it, then bumped the scope with my hand like it might during firing. The scope is solid on the mount, but sure enough the dot moves from zero. Maybe I got a bad one, but fortunately its only $30 wasted. Its too bad, it seems like a decent scope if it worked. Maybe on an airgun or 22 it would be fine.
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