Ideal Crimp for Hunting Bullets in Semi-Automatics?

Crimp Requirements for Hunting Bullets

When hand loading hunting bullets for semi-automatics, it’s crucial to achieve the right crimp to ensure reliable feeding and prevent damage to the case and bullet. A crimp of 0.004 to 0.006 inches is generally considered ideal, as it provides a secure seating of the bullet without over-compressing the case.

Choosing the Right Crimp Die

To achieve the ideal crimp, you’ll need to select a suitable crimp die for your reloading press. A die with a precise crimping ability and a range of crimp depths is essential. Look for a die with a crimp depth range of 0.002 to 0.008 inches, allowing you to fine-tune the crimp to your specific needs.

Tips for Crimping Hunting Bullets

When crimping hunting bullets, start with a light touch and gradually increase the pressure to avoid over-compressing the case. Use a consistent crimp depth to maintain uniformity in your loads. It’s also essential to monitor the case neck tension to ensure it doesn’t exceed 20-30% of the case’s original diameter, which can lead to inconsistent feeding and potential damage to the bullet.