Here are some consecutive frames from that animation:




These frames show the fully loaded clip being pushed down and locked in place. There are six (count them) cartridges in the clip and they are all below the bottom of the receiver chamber and the level of the bottom of the bolt. This is also shown in blabbermouth's video. Simply place a seventh cartridge in the receiver chamber and slide the bolt forward. The seventh cartridge will be pushed into the firing chamber (in lieu of the top cartridge in the clip). This is also what Frazier testified.
Thank you Charles for being such a good sport and posting the still shots from the cut away....
Here is the one that shows the clip all the way down in the magazine and the clip latch latched...

Please notice that the top of the top cartridge in the clip, is slightly above the bottom of the retracted bolt....So when the bolt is pushed forward the elevator (which is pushing the stack of cartridges upward ) will feed that top cartridge up and into the annular space ( and the spent shell extractor ) on the face of the bolt. Then the cartridge will be married to the bolt and the assembly will can be inserted into the firing chamber. This is the only way that the cartridge can be loaded into the chamber
ie;... The cartridge MUST be pushed up into the face of the bolt from below the bolt. And when there are six cartridges in the clip there is no room to place a seventh round on top of the six.
