Above is the best advice.
Questions to ask yourself:
1. How much do I have to spend for 9mm ammo now?
2. Where can I find 9mm ammo now?
3. How much 9mm ammo do I need to fire through the Hellcat to feel comfortable with it? 100 rounds? 200 rounds?
4. where am I going to find the ammo to replace the ammo expended and how much is it going to cost me?