What type of black powder cartridge rifle shooting is available? When are shoots if available?

Check out tcsa.info for info on scheduled matches at the Primitive Range (where black powder stuff is usually done)

I think all types are welcome, but not entirely sure. You may shoot black powder at the Rose-Iris range. As for actual black powder events, check the website events calendar. Such shoots I think are typically held at the Primitive Range. Contact info is probably also on the website, and definitely in the monthly news letter. I haven't gotten into black powder shooting - yet - so that's about all I know. Hope it's helpful.