I have a Winchester 94 in 30/30 manufactured in 1970. An issue developed where rounds slip back out of magazine tube under the loading gate. The loading gate screw was pretty loose. After tightening it the problem seems to have stopped, but I have not shot it yet. It will cycle all 7 rds through ok now. The first time this happened the gate actually opened up outside of receiver. So my question is, if tightening screw doesn’t solve problem do you think it is more likely the loading gate or lifter creating the problem ? I’m sure there are many many people here who know these guns inside and out. Thanks in advance for any help or advice.