making a coil spring for a rifle

[woodsman1031]

Hello,

I am making an underhammer muzzleloading rifle of my own design. I planned on using a flatspring but I am unable to use one in this design. I will need to make a coil spring and I have no idea where to start. does someone know how to do this? I also have no idea of where to get wire for it.


Thanks

[kawalekm]

Brownell's book "Gunsmith Kinks" has a section on making springs. *To make a custum coil spring you need the right spring quality steel wire. *The wire can be purchased from Brownell's. You wrap this wire around a machine screw of the desired diameter and pitch, then heat treat the new coil with a propance torch and quench it. * *

I would think though that the easiest thing to do is just go to your local hardware and look through their selection of springs. *Alternatively, the auto junk yard or local recycling center is full the junk contining springs ready for the taking.

[tufhelp]

A place like Grainger's might also have quite a selection of springs.

I Googled coil springs and there is a plethera of places that sell every conceivable kind of spring, here are three that look like they might fit the bill:

http://www.associatedspring.com/special_order.html

http://www.centuryspring.com/products/compression.html

http://www.leespring.com/?gclid=CP_7rZzNq4oCFTFrMAodGXBcpg

[ArmySGT.]

Hello,

I am making an underhammer muzzleloading rifle of my own design. I planned on using a flatspring but I am unable to use one in this design. I will need to make a coil spring and I have no idea where to start. does someone know how to do this? I also have no idea of where to get wire for it.


Thanks

If you don't own a lathe you will have to buy one. A wire chosen for it diameter is wound around a mandrel on a lathe using the threading set up. You could by a gunsmith box of springs from brownells. pick the one you want. If it is to long snip it one and a half coils too long. place a small 1/4 inch plate in a vise. Heat the plate with a torch. When a spot the size of a quarter is red hot time to close the coil. Close the coil by holding the spring in a pair of pliers with the cut end out and the closed end in the pliers. Force the open (cut) end against the steel plate compressing it. The heat will be transfer to the sping and the coils that extra coil and a half will close up. No need to quench. The spring steel for coil springs is already hardened and tempered.

[Pitdog]

I probably have a spring for you, I will need to know how long, and the outside diameter, plus the inside diameter if it is going to have a guide, or a plunger. I have ALL of the Brownell's coil spring kits, and can easily part with some to save you buying the whole thing, if not then I can wind you one as well. Just let me know.