I bought a Savage 7mm Mag and it has a 3x9x40 leopuld scope. This gun has been giving me lots of problems. The scope need adjustments all the time. Sometimes it shoots too high and some other times it shoots too low. Also the Stock is a little bit loose, I check all the screws and they all very tight. can you please advise if this gun worth spending any money on? I am fairly new to guns and my experience is not that great. any help would be highly appreciated.