ISO: Xtra Strength Springs
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I don't know of anyone making extra power mainsprings. The best I can suggest is to use a normal OEM S&W one, and bend a large radius backward curve. The top would only need to move 1/4" to 1/2" from the original position. When tightened by the strain screw, it will be noticeably stronger than before. You can also make them less powerful by bending them forward in the same way.
These springs are very high quality. Due to proper alloy, heat treat, and tempering, they will retain the new shape very well.
These springs are very high quality. Due to proper alloy, heat treat, and tempering, they will retain the new shape very well.
DWalt
Member
Why is an extra strength spring needed?
Alk8944
US Veteran
The question of why do you think an extra-power mainspring is needed? Has the factory spring been modified by bending, or has the strain screw been shortened/loosened?
There are two things to do if more spring pressure really is needed. First is reduce the spring arch slightly as Protocol Design said. Second is a new strain screw that will be longer than the screw in the gun since the strain screw is fitted at the factory to give a specific hammer-lift weight. An 8x32 set screw can be had from any hardware store too. The set screw must be secured with thread locker since it doesn't have a head to lock against the frame.
What do you intend to ask by the use of the acronym ISO? This has many different meanings, mostly military and none regarding commercial firearms. This is the second time I have seen this used recently! Or is it you that asked for an ISO part number a few days ago?
Finally, I seriously doubt that any more spring pressure is needed than is provided by the original factory spring, unless there have been modifications done already!
There are two things to do if more spring pressure really is needed. First is reduce the spring arch slightly as Protocol Design said. Second is a new strain screw that will be longer than the screw in the gun since the strain screw is fitted at the factory to give a specific hammer-lift weight. An 8x32 set screw can be had from any hardware store too. The set screw must be secured with thread locker since it doesn't have a head to lock against the frame.
What do you intend to ask by the use of the acronym ISO? This has many different meanings, mostly military and none regarding commercial firearms. This is the second time I have seen this used recently! Or is it you that asked for an ISO part number a few days ago?
Finally, I seriously doubt that any more spring pressure is needed than is provided by the original factory spring, unless there have been modifications done already!
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Doug M.
Member
ISO in this case is in the note: In Search Of.
Don't know why one would need an extra power main spring in a K, L, or N-frame S&W. The factory spring provides more than enough energy to ignite primers. If there is an issue with primer ignition, it may be due to a short firing pin or excessive headspacing or primers that are not fully seated and a new spring won't fix those issues.
geeollie
Member
Cylinder and Slide may have what you are looking for.
They seem to be reducing their offerings yet may still have something that will work.
They seem to be reducing their offerings yet may still have something that will work.
Want a stock spring to have more power? Go to an Ace hardware store and get an 8-32 gun screw longer than your stock screw and trim its length to what ever suits your fancy. BUT, IF you need more power than a stock spring and screw, your problem isn't with the spring and screw. Bad firing pin, hammer binding, excess endshake of headspace, poorly seated primers, bad primers, etc etc
IF you just want to increase trigger pull weight, get the heaviest possible rebound spring and install it along with a longer strain screw. You could even place a short piece of round stock in the rebound slide before the spring as long as the spring could collapse enough for the trigger to go all the way back.
IF you just want to increase trigger pull weight, get the heaviest possible rebound spring and install it along with a longer strain screw. You could even place a short piece of round stock in the rebound slide before the spring as long as the spring could collapse enough for the trigger to go all the way back.
Thank you. I wrote to them.
Others, my hands are strong and i shoot better double action scores with stiff trigger pulls. Arching the hammer spring with the tension screw is limited by the cross screw in the grips. I do not like bottom-screw (Hogue) grips. Some S&W springs are stiffer than others, but trial and error fitting until I find one I like is both expensive and tedious. I would like to locate a supply of storng springs.
Alk8944
US Veteran
Then install a heavier rebound spring. Not the mainspring.
There are several of us who have many years repairing guns professionally and have given you good advice! You simply are not paying attention. One very basic concept of asking for advice is: Don't argue when you receive it! If you knew the answer you would not have asked the question!
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If I remember correctly, Tom's original post was about where to obtain "extra strength hammer springs" for S&W revolvers.
Perhaps I'm off base here.....but questions, counsel, unsolicited opinions and criticism about why he needs the springs, and what he's planning to do with them, etc., seems out of bounds, and is just rude in this context.
Carter
Perhaps I'm off base here.....but questions, counsel, unsolicited opinions and criticism about why he needs the springs, and what he's planning to do with them, etc., seems out of bounds, and is just rude in this context.
Carter
IF he would have stated his reason for wanting the springs he would have gotten more direct answers. IF he had done so I would not have posted anything but the FACT that a longer main spring tension screw and/or an increased strength rebound spring would accomplish his goal.
I do not recall anyone doing anything but trying to help.
The only statement I see that might be considered rude is " seems out of bounds, and is just rude in this context." I guess you could include comments about "ISO". But, I can't see where asking why he wants increased strength spring is rude.
If we narrowly answered every request here with answers directly related to the request it would be a LOT LESS interesting forum.
But, then except for the Marine Corps, roughnecking in the oil patch, commercial fishing and working in oil and chemical refineries, I have spend a very sheltered life and my view of rude is different than most.
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My sincere apologies to anyone here who was offended. That was not my intent in my post.
Carter
Carter
Well I also say stuff that some people find objectionable. We all do from time to time.
So as they say "forget about it"
Giving long distance advice can be difficult sometimes, on both sides of the equation. On the one hand, often the person wanting help doesn't really know how to frame the question or what details are relevant to get the answer they are looking for. On the other hand, sometimes the helpers don't have enough of the right information they need to give a good answer, so occasionally it can get a little frustrating on both sides.
I think we are all mature enough adults to be able to be candid and honest with each other and say what we really think. I would not like to get to the point where people feel they have to tiptoe around to keep from hurting someone else's feelings. In a place where one can have a free exchange of ideas, there will always be differing thoughts and opinions. Aside from personal attacks, I prefer that kind of dialogue. I did not feel that anyone was out of bounds here, or that any apologies were needed. That is just my point of view. There are probably other opinions, which is perfectly acceptable to me.
I think we are all mature enough adults to be able to be candid and honest with each other and say what we really think. I would not like to get to the point where people feel they have to tiptoe around to keep from hurting someone else's feelings. In a place where one can have a free exchange of ideas, there will always be differing thoughts and opinions. Aside from personal attacks, I prefer that kind of dialogue. I did not feel that anyone was out of bounds here, or that any apologies were needed. That is just my point of view. There are probably other opinions, which is perfectly acceptable to me.
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