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They are not of the greatest quality and clarity is ok not more, on a low power rifle 223 or rimfire they are ok but i would be carefull intalling it on a 30.06 or a 7mm, you might find yourself in a delicate position, i recommend a Redfield Revolution... Cheers. JP.
I have a fixed 2.5x20 on my 4570 and love it. Clear brite. Not as good as a leupold but its also a fraction of the cost. A buddy has a 3-9 on his 270 and it works fine