if your shooter is for long range 600y+ loupys track like dog droppings there is two that i will consider 1 xy 1 reasonable
nightforce NXS 5.5-22x56 or abouve or the sightron s111 6-24x50 both of these scopes have impeccable tracking and excellent HD glass NF slightly better
nightforce NXS 5.5-22x56 around $1950
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sightron s111 6-24x50 around $950
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it's good to see you doing some research i didn't do enough the scope on me 7mm is good tracking is as good as these two but the glass
ain't as good for ageing eyes if i only was 10 years younger .
the vortex don't use HD GLASS
i will be going for a shot with a 375 chaytac at 2000y with a sightron s111 8-32x56 soon i will let you know how the glass is on that scope .
like this one
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cheersD