Redding Type S Bushing vs L.E. Wilson Bushing Full length sizing die
- Thread starter JNA
- Start date
Hows is the Redding any easier to adjust than the Wilson ? They are both full length bushing dies.
If you have a factory rifle with a SAAMI chamber I would think twice about using a bushing die.
The more the neck diameter is reduced with a bushing die the greater the chance of inducing neck runout. This is because the bushing floats, can move from side to side and even tilt when sizing the neck.
If the neck thickness varies .002 or more Redding recommends selecting a bushing .002 to .003 smaller and use the expander to set the inside neck diameter.
If you neck turn your brass the case neck will expand more when fired and need to be reduced in diameter even more.
Bushing dies work best with custom tight neck chambers with neck turned brass.
If you are worried about over working your case necks Forster will hone the necks of the full length dies to your desired diameter.
There is also a reason why so many reloaders use a Lee collet die. And that is because the Lee die produces less neck runout than a bushing die.
Tech Line & Tips (FAQs)
https://www.redding-reloading.com/tech-line-a-tips-faqs/146-concentricity-problems
Concentricity Problems
a.k.a Neck Runout With Bottleneck Cases
"We have conducted many tests over the years on the various factors contributing to concentricity problems with bottleneck cases. We have repeatedly found a definite correlation between the uniformity of the brass (or lack of it) and the resulting concentricity of the neck to the body of the case.
An interesting experiment also revealed that neck turning of brass that was intentionally sorted as non-uniform, showed little or no concentricity improvement when used in standard S.A.A.M.I. spec chambers. Conversely brass that was sorted and selected for uniformity remained uniform and concentric with or without a neck turning operation."
The more the neck diameter is reduced with a bushing die the greater the chance of inducing neck runout. This is because the bushing floats, can move from side to side and even tilt when sizing the neck.
If the neck thickness varies .002 or more Redding recommends selecting a bushing .002 to .003 smaller and use the expander to set the inside neck diameter.
If you neck turn your brass the case neck will expand more when fired and need to be reduced in diameter even more.
Bushing dies work best with custom tight neck chambers with neck turned brass.
If you are worried about over working your case necks Forster will hone the necks of the full length dies to your desired diameter.
There is also a reason why so many reloaders use a Lee collet die. And that is because the Lee die produces less neck runout than a bushing die.
Tech Line & Tips (FAQs)
https://www.redding-reloading.com/tech-line-a-tips-faqs/146-concentricity-problems
Concentricity Problems
a.k.a Neck Runout With Bottleneck Cases
"We have conducted many tests over the years on the various factors contributing to concentricity problems with bottleneck cases. We have repeatedly found a definite correlation between the uniformity of the brass (or lack of it) and the resulting concentricity of the neck to the body of the case.
An interesting experiment also revealed that neck turning of brass that was intentionally sorted as non-uniform, showed little or no concentricity improvement when used in standard S.A.A.M.I. spec chambers. Conversely brass that was sorted and selected for uniformity remained uniform and concentric with or without a neck turning operation."
Not every chamber is the same.
