I was on the firing range today and saw first hand a ZOS scope mounted on a Browning 7mag. Owner was firing remington 7m 175grain core-loc..
I was beside the shooter with the same rifle using the same bullet ($26 a box) but the scope I use is the ZeissConquest 4.5 14x44 rapid-Z 800..
of course we had to do the look and see and then we got down to firing... 100 yards, then 200 yards then at 300 yard.
The shooter (say Ken) had his range card out and made all the adjustments necessary for a sure tight shot group. His 12 year old son was with him. Firing line was clear, son picked up Ken's rifle and it slipped through the youths hands and dropped flat. A big thud was heard.. Ken with out a blimp said no problem son, and layed the rifle back down and we proceeded to check the targets..
At 100yards his shot group was dead center quarter ring; my shot group was dead center 2x2 with one outside black center mark..
Coming back on line with the range hot, Ken reshot at 100yards, results were the same. no change.
At 200 yards, I must say I was very impressed with the optics of his 40x60. the sight picture was clear crips and provided excellant eye relief.. In fact, as hard as it is to say, the over all down range clarity was better than my Zeiss 800z at a mear fraction of the cost.
At 200 yards, Kens shot group was never dead center and was low to the right about the size of a half dollar.. he made several adjustments but could never get it under a half dollar shot group and was consistant low to the right...
At 300 yards this is were the Zeiss took over, the rapid Z held true with the shot group as it did at 100yards with a slight adjustment to the left I compensated for the 100yards shot group and went dead center with an excellant 2x2 and one shot touching black ring.
Ken never made center at 300 yards and had a consistant shot group 5 square low to the right.
If looking for a scope under $300 that will give a solid preformance under say (shooting- house) conditions, my view is the ZOS 40x60 is a heck of a scope for the up to 250 yard shot.. It maybe as good for the 300 yard shot as well, but it was not my rifle nor scope so I did not fire Ken's rifle.
The optics performance was and is extremely impressive even up against my Burris Blackdiamond and Leop. GoldSeries.
Mounts, Ken did say he purchased Lepo mounts and threw the originals away..