177 with Percussion Cap Nipple
 

A proper tutorial (with the right drill bit) of how to make a .177 barrel with an integrated Percussion Cap Nipple.
I used a drill press, 2 drill bits, a hand drill, a belt sander, a vice, a
 vicegrip, a hacksaw, a dremel, a few files, and some sandpaper and
polish.
It's fairly easy if you know what to do, although it is time
consuming, but if you want to have lathe-quality work without a lathe,
that's the price you pay.