I would advise you to avoid cast bullets in the Glock. If not being extremely careful you can have a buildup that can cause extreme pressures in the Chamber of the pistol that could have explosive results. Can that be avoided, Yes, if your careful. Best just to avoid the cast bullets in a Glock all together. With just a little shopping around you can find plated bullets at decent enough prices. Like this one:
I am sure there are even better deals out there finding that one I spent all of like 15 seconds. As far as Primers go I use CCI for my plinking rounds. They are a hard primer but I have never had any problems with them. Just getting started on reloading I would recommend using Unique or another coarse powder that completely (or nearly completely) fills the case.
This eliminates the possibility of a double charge. It doesn't take a rocket surgeon to know something is wrong when you retract a case from the powder measure and have powder spilling out all over the place. I would also recommend getting a manual such as lyman's reloading guide. Lots of great info in them. Additionally I have a couple subscriptions to reloading mags and such.
I know I am starting to babble now and probably throwing out more info than you were looking for but I think re-loading is as much fun as shooting. Plus it is something to do when the weather is bad and I can't get to the range or anyplace.
Anyway, long story short avoid the cast bullets if you can get the plated.