Oh I forgot to mention check the scope as others have mentioned. Screws & so on take a mirror small one with you but big enough to cover the scopes objective lens. Hold it flat on the objective lens you will see 2 sets of cross hairs one will be center the other will not may be high or low right or left. Make sure your eye is dead center of scope looking at the center cross hairs. make note of the other cross hairs position remove the mirror fire a round or to then check it again. If the uncentered cross hairs have moved you need a new scope. You can also use this method to optically zero the turrets of your scope so you have maximum adjustment available up down left right. To do this just make both sets of cross hairs line up to be one set. This is why many snipers carry a small mirror with them. Also makes a good signal for many things.
P.S. Adjusting scope zoom will effect the position of the second set of cross hairs to the center set just keep that in mind. So zoom 1st check fire check.
Last edited by midwestprowler; 12-03-2012 at 04:03 AM.
Reason: Added P.S.