1. What is good minimal recommended 9mm Target Shooting ammo? 2. What is good minimal recommended 9mm Defense ammo? 3. Where can I buy ammo the cheapest in California? Internet or local stores? I have only used my XD-9 once so far at the range only, and I used Winchester 9mm 115 grains ammo from Wal-Mart. Box of 100 rounds cost me $23.97 + tax.