I purchased a supposedly new Umarex 850 Air Magnum 18 months ago, and have had continuous problems with the bolt action and loading from the 8 shot clip. I sent the gun back to the well known air rifle dealer for repair under warranty, and the gun was returned supposedly repaired. (I have no details on what was actually done). The bolt action was still stiff, and still had the old problem of pellet loading (like the clip was not correctly aligning itself with the barrel and bolt as it turned on being reloaded). The problem has not become major, as the bolt will no longer cock the rifle, and it is almost as though there is some sort of peg missing on the bolt which sets the trigger. The automatic safety also does not lock indicating that the bolt isn't drawing back far enough (if that makes sense). Has anyone else had a similar problem with this gun? If so what is the remedy? I have gone to a local gun dealer who is sending it to a gunsmith for a quotation, but it would be useful to know what the actual problem is! Help!!!!