I have recently seen some pictures of an old H & R model 922 made in the 1930s with the 6 in. octagon barrel along with some other similar models like the smaller frame Trapper. My question may seem silly but in all of the pictures of these older models there appears to be no loading gate at the back of the cylinders. Although there's a cut out in the recoil shield to load them through it without having to remove the cylinder. So I'm wondering what keeps the shell that's lined up with that cut out from falling out of the gun or at least binding up the cylinder since there is no load gate to do it?