Yes, I load my own tracers, but I don't load incendiary because it costs too much. I know folks who have and I have seen them being shot in .30 and .50BMG. They're interesting, but not enough for me to pay more. I buy tracers and AP pulldown for fairly cheap.
For a little more information on the military loads do an internet search for
TM 43-0001-27 or "Army Ammunition Data Sheets". It's usually available as a 1.5Mb .pdf file. I'd attach it,but it's too big for the servers here to handle in one post. It's the army ammo load data manual. Note that the powders listed in it are NOT cannister grade powder that you buy commercially. However, some of those bulk powders ARE available on the market. Treat it as interesting information that gives you a vague idea of comparative load data and bullet options, NOT as a source of accurate data.
No one that I know mixes their own tracers. .223 and .30 tracers are only about .10-.12 apiece if you buy them from the right sources at gunshows or online.
