rcmodel
Member in memoriam
Well, I have been reloading for 50+ years and I have yet to see brass get so old it can't be resized.
If your sizing die is in spec and doing what it should do.
My experiance has been about 90% of the time this "no neck tension" problem is caused by an oversize expander.
The other 10% might be out of spec / thin brass, which seems to be getting more common today as manufactures try to cut corners everywhere there is a corner they can cut to save money.
They can make brass thinner, and make the case forming dies smaller to make the thinner brass fit the bullets.
But then it is too thin to size properly in a standard sizing die..
rc
If your sizing die is in spec and doing what it should do.
My experiance has been about 90% of the time this "no neck tension" problem is caused by an oversize expander.
The other 10% might be out of spec / thin brass, which seems to be getting more common today as manufactures try to cut corners everywhere there is a corner they can cut to save money.
They can make brass thinner, and make the case forming dies smaller to make the thinner brass fit the bullets.
But then it is too thin to size properly in a standard sizing die..
rc