Chuck,
Before I get too deep in the details of this situation, can you provide me with the lot numbers for the bullets you are discussing?
I will relay that the 6mm 105 gr Hybrid bullets have quickly become our most popular Target bullet. We are literally making millions. Tooling wear is normal and since we are making so many of these bullets it is to be expected that from lot to lot you will see some differences.
Some keys to consistency in our process (in my opinion) are that we use only one die until that die is worn out. We also keep strict lot controls so that within a given lot, the bullets will be the same.
I can't promise that these bullets will be precisely the same from lot to lot especially over a span of years. One question I like to ask when something like this comes up is, "how do they shoot?" Typically the answer is a good one.
One other quick note about neck tension and understand that I am not an expert in this area so I'm open to correction. My understanding is that the characteristic that disrupts consistent and effective neck tension is work hardening from use.
As the cases are shot they get harder. If the necks aren't stress relieved or the cases replaced the elasticity in the neck goes away.
Reports of bullets acting like an expander ball resulting in not enough neck tension to hold the bullet are typically resolved by new cases or stress relieving the existing cases.
Regards,
Eric Stecker
Berger Bullets
Before I get too deep in the details of this situation, can you provide me with the lot numbers for the bullets you are discussing?
I will relay that the 6mm 105 gr Hybrid bullets have quickly become our most popular Target bullet. We are literally making millions. Tooling wear is normal and since we are making so many of these bullets it is to be expected that from lot to lot you will see some differences.
Some keys to consistency in our process (in my opinion) are that we use only one die until that die is worn out. We also keep strict lot controls so that within a given lot, the bullets will be the same.
I can't promise that these bullets will be precisely the same from lot to lot especially over a span of years. One question I like to ask when something like this comes up is, "how do they shoot?" Typically the answer is a good one.
One other quick note about neck tension and understand that I am not an expert in this area so I'm open to correction. My understanding is that the characteristic that disrupts consistent and effective neck tension is work hardening from use.
As the cases are shot they get harder. If the necks aren't stress relieved or the cases replaced the elasticity in the neck goes away.
Reports of bullets acting like an expander ball resulting in not enough neck tension to hold the bullet are typically resolved by new cases or stress relieving the existing cases.
Regards,
Eric Stecker
Berger Bullets
