about engine lathes and common methods/setups used to operate them to familiarize yourself with the common terms used to describe a lathes parts and features so we can speak and understand the same "language."
I also recommend you use several of the links on the links page to see what kind of tooling is available for your machine to overcome some of your machines limitations as shipped from the manufacturer such as a 1/2" or 5/8" drill chuck with a #2 Morse taper shank for the tailstock to accept bits up to at least 1/2". Some of the smaller machines will have a hard time drilling with a 1/2" or even a 7/16" drill in steel with a small horsepower motor.
There are also many websites that have hundreds of tips on using The Mini Lathe and Mill.
Varmint Al's Mini_Mill page discusses several tooling recommendations for the Mini_Mill including some of the items you recently have had questions about and Varmint Al has many interesting articles to read on his website from engineering to hunting.
This is one of my all-time favoriteshttp://www.gadgetbuilder.com/
Airguns are a gas