Been shooting my own reloads for the past 22 yrs. Did a lot of IPSC during my younger days and went through .45 like I was plinking .22LR ammo.
Aside from the investment in reloading equip (got an RSBC single stage set-up), reloading 1000 rounds of 9mm costs me a total of CNd$125 (includes GST/PST)
Bullseye Powder (1 can) - $35
Lead heads - $50/1000
Small primer - $40/1000
Collect & Use those once fired shells. Not only will you save some coin but the art of reloading is calming and allows you quality control over your loads.