We did up a quick video showing breaking in a brand new 597 mag. Start with 10 rounds, once it feeds reliably add 5 rounds, and repeat until the mag runs!

If you still have issues try the following:
  • Make sure your ammo is not heavily waxed. Waxed ammo sticks to the magazine.
  • Clean and oil your recoil spring and guide rod.
  • Reverse the magazine spring front-to-back. This will push the nose higher up and will align better with the chamber.