I got a new 10-50x60 LRMOA-2 yesterday and mounted it up. When I got to the range today I was having problems getting zero at 100. I didn't have enough travel to get a 100 yard zero with my 20 moa base. When the scope was near the bottom of the elevation travel, it would not move left or right. When it was totally bottomed out on the elevation adjustment the first 15-20 clicks up walked up and to the right. After that it seemed to track up and down correctly and would adjust left and right again. I shot once moved it up 87 clicks then back down 87 and put the bullet in the same hole. It is also not usable above 35 power, its so dim I can barely see. Do they all do this or should I send it back?