Hi if any one could help me out... I have a 4x4 270 bolt action. When I first got the gun I took it to the range to have it sighted in. Maybe 12 rounds shot. I cleaned it and put it away. Well couple of months later I took it out and resighTed it ( new scope) in. I loaded1 bullet at a time and first shot fired but the bolt got stuck and it couldn't open to eject the casing. With force and messing with the safey and bolt release it opened. Second shot same thing as the first. I oiled the bolt and loaded a 3 RD round and fired. Bolt jammed again and can't eject casing. Took it home and cleaned the rifle and bolt and it is fine. Only with a casing in it always jams and I cant pull the bolt back to release the casing. I didn't try it with a live round to see if it will release. Please help. By the way I'm shooting 130 grain Winchester bullets. Any one with the same problem?