Rifle working fine then i took it to check sights were correct and it wouldnt even hit the target so fired a few more shots through it and it hit the target surround but with no power whatsoever, it was then it dawned on me that something is resticting the pellet when it leaves the rifle, so i took off the silencer and its working fine, i put the sileancer back on and it worked fine, then i went out hunting and it started misfiring again, totally shatters your confidence when your expecting something to go wrong before you pull the trigger, very annoying, has anyone else had anything like thi