i recently purchased a m92 rossi .357 trapper. after 40 or 50 trouble free firing the action locked up. i noticed that the loading gate was almost flush with the receiver and when i depressed it, the action cycled. i checked the screws and found the screw behind the gate was loose. another 10 or so shots with no problem. took it out again today and we are having the same issue. it may be more likely to happen when the mag is close to full capacity, but i was not able to shoot it enough to be sure. has anyone run into this and found a solution? it is a new rifle, but i'm not going to ship it back for a "problem" they probably won't be able to duplicate. thanks for your input.......