I agree. There is no good reason for the taper to extend out past the entrypipe, and doing so would unnecessarily weaken the wood ramrod. Tapering a RR can be downwith a powder sander, if you hold the wood to the sander with your fingers. Always mark a circle on the end of the rod, centered, to tell you how much more wood needs to removed.
You can also use spokeshaves, and even wood planes, followed by fine files, and sand paper to remove the "corners" from the flats left by the wood plane. These allow even more control, as they are Hand Tools. It does not take a lot of time to taper a Ramrod, IF you know how to use these tools.
Finally, a gunsmith I knew made a steel plate, with a U-shaped cut in the plate. The U expanded out in a V-shape, but was U-shaped at the bottom. He put bevels on one side of the plate. It wasn't even very hard steel, as I remember. To Taper a ramrod, he would put the rod in the Notch, and pull it through the restriction. The edge of the steel would remove a fine feather of wood on both sides of the stick, keeping it centered. He would then rotate the RR, put it back in and repeat the process. A Bit of pressure applied to the stick as it approached the end of the RR was all that was needed to get the rod to go lower in the notch, and create the taper.
Use what works for you. :thumbsup: