Muzzle loading

The standard way of doing things, because it is the cheapest and easiest to make; in fact, it is not possible to make a launcher that cannot be breach-loaded.

Some design their launchers to be easier to muzzle load by making small (like 1/16") vent holes at the base of their barrel for air to excape. This air would otherwise prevent the nearly airtight ammo from being rammed down there. Some, however, prefer to install a small valve of sorts. This prevents air or hot combustion gasses from shooting out and decreasing preformance and/or burning the operator.

It is recomended that you sharpen your muzzle if you are planing appon shooting produce. Such a modification is called a "muzzle knife". If you do not feel safe having a cutter on the end of your gun, you can instead keep your spud cutter as a seperate instrement.