Project355
Member
- Joined
- Aug 2, 2020
- Messages
- 672
Just thought this might be a place to put some specs, for those who tinker.
The Ruger springs are those for the Single Action XR3 grip frame, not the XR3-RED, and are also the spring for Ruger SA's with "the lock"
Stock 18#? - .046 to .049 wire. Most of the measuring spots were about .048. This was definitely variance in the wire, not measuring inconsistency. The ID is .211. It has 8 CPI (coils per inch).
Wolff 16# - .0435 wire, consistent over the entire length. The ID is .0216, and it has 10CPI.
Wolff 15# - .0425 wire, consistent over the entire length. The ID is .0222, and it has 9 CPI
Wolff 14# - .0415 wire, consistent over the entire length. The ID is .0225 and it has 9 CPI
The uncompressed length on all four of those springs is very close to 2-7/8ths
The Winchester / Moroku 1892 hammer spring is .055 wire, ID of .222 and has 7 CPI, and the length is 2 inches.
The CPI values are.... rounded down. In other words, I didn't try to count 7-1/3 coils or 8-1/2 coils.
Length is that seen on a regular 12" ruler. Wire gauge and ID's as best I could do on repeated measurements with a Mitutoyo digital caliper.
I wish Wolff would publish the spec on every spring they make. Sean Wolff basically said they were working in it, but it would take some time. Lots of times, you can use a spring that was dedicated for one task, on another (but similar) task, as long as you have an overall idea of its properties.
I've not been able to find this info anyplace I've looked, so... now its there for all.
The Ruger springs are those for the Single Action XR3 grip frame, not the XR3-RED, and are also the spring for Ruger SA's with "the lock"
Stock 18#? - .046 to .049 wire. Most of the measuring spots were about .048. This was definitely variance in the wire, not measuring inconsistency. The ID is .211. It has 8 CPI (coils per inch).
Wolff 16# - .0435 wire, consistent over the entire length. The ID is .0216, and it has 10CPI.
Wolff 15# - .0425 wire, consistent over the entire length. The ID is .0222, and it has 9 CPI
Wolff 14# - .0415 wire, consistent over the entire length. The ID is .0225 and it has 9 CPI
The uncompressed length on all four of those springs is very close to 2-7/8ths
The Winchester / Moroku 1892 hammer spring is .055 wire, ID of .222 and has 7 CPI, and the length is 2 inches.
The CPI values are.... rounded down. In other words, I didn't try to count 7-1/3 coils or 8-1/2 coils.
Length is that seen on a regular 12" ruler. Wire gauge and ID's as best I could do on repeated measurements with a Mitutoyo digital caliper.
I wish Wolff would publish the spec on every spring they make. Sean Wolff basically said they were working in it, but it would take some time. Lots of times, you can use a spring that was dedicated for one task, on another (but similar) task, as long as you have an overall idea of its properties.
I've not been able to find this info anyplace I've looked, so... now its there for all.
