I beleive I found the answer. I can order a long spring and cut to length or I can just get two short stock spring at double the rate and put them on top of each other. Several companies have ones that will work and fit into my constraints. Thanks everyone for your feed back.
Thanks for all the feed back and it all has been most helpful. My budget does not allow a custom spring to be made but I did find a stock spring that looks promising.
The characteristics
Lenght = 11"
OD = .240
WD = .028
Rate = .77 lbs
Load = 4.56
Active Coils = 121
So I read somewhere that...
I have talk to the rifle maker and he is not motivated to make changes to his design. I like the rifle so much I decided to make the changes myself and send him a completed example.
Generally the recoil springs used on rifles are made using standard music wire. They tend to last about 10,000...
I am an amateur gun smith and I have a rifle that has a design flaw that I am trying to correct. The design flaw is that it is using an extension spring as a recoil spring mounted in the front of the bolt instead of a compression spring at the rear of the bolt (as most semi-automatics). The...
I have a extension spring and expand it to a certain length and at that length a have a calculate number of lbs of force. Suppose I stretch that spring to the same length and heat it to red hot and quence in oil. Will I end up with a compression spring with the same rate as the extension spring?
I am a computer engineer not a mechanical engineer so my question is pretty basic.
What effect does strechiing a compression spring beyond it's limit has on it's rate. For example if I have a spring that is has a 2 inches free length with a rate of 8 lbs and I stretch it to so it that it's...
