First of all you have to shop around and buy in bulk. Try PowderValley.com for buying in bulk on powder and primers. Don't buy in small quantity or you pay the most for the least. If you ever buy primers in less than a thousand a case then you are paying too much. It's the same with powder. You can start with a pound to see if you like it but once you have a chosen load you need to buy it in the eight pound jugs to really save the money. Bullets can be bought in bulk as well. FMJ is great for Glocks and full power loads. You can buy plated but don't push them at jacketed velocity. To save more money you can buy lead bullets. To save even more you can learn to cast them yourself and never worry about running out ever again. 9mm just about grows out of the ground at most ranges so get scrounging and you should be able to stock up for free during a range visit. The initial cost setup will take a while to recoup but it's pretty rare to meet a reloader that regrets getting into the hobby. In the end it stops being about the money though. It becomes the hobby itself.