crawdaddy,
what will the scope be mounted on? have heard about problems keeping scopes zeroed on larger caliber rifles. But on a .223 / 5.56 everything has been fine.. I sighted in during the middle of the day. With the cap on it was fine.. The scope has an automatic shut-off if the light is too bright. sighted mine to 100yds and have no problem shooting out farther. Am currently looking for a better I/R light. the one that comes with the scope is not the greatest. only reaches out @75 yds. been using a ND3 green laser designator in conjunction with the NV scope. works great out to about 200 - 250 yds.