True, the rail-pusher in TWOK does seem to stop at the breach door. In fact, it stops and retracts as the torpedo is being pulled in, seemingly under its own power. Still using conventional ferric metals in the late 23rd century, eh? MAGNETS!!! in any case, those Connie auto-loaders are WAY too freakin' slow to be tactical in a firefight, moving at the speed of dramatic intent. It's why I really liked the ones they used in ENT so much. They were purposeful, fast, efficient and looked combat-ready and believable. No wonder Malcolm Reed was so proud of them. He was right to be.