Trigger Job / cutting coils

[Request Dust Off]

I have a general question regarding trigger pull reduction and springs.
I often see DIY trigger job instructions in which the author cuts coils off of a spring to reduce its spring rate. On an automobile coil spring this increases the spring rate. It should be the same on coil spring from a firearm.

Am I missing something here? Is this a valid way to reduce trigger pull or a
hack?

I can see shortening a spring would reduce preload which may trade off more weight than it gained in rate.

Later,
RDO

 

[dmiculek]

Here is my opinion, speaking mostly from a 1911 and AR15 perspective:

Back in the day when all that was available were the stock springs, clipping a coil or two or reducing the spring diameter by grinding or filing was the accepted method.

Today, reduced rate hammer springs and such are widely and cheaply available. There is no need to clip a spring and jeopordize preload.

 

[rockmup]

Hack.

Polishing contact surfaces will gain you all you need and then some in MOST cases.

You are correct in your thinking and yes, that used to be your only option spring wise

 

[Request Dust Off]

Thanks for the replies.

I am starting to do some trigger jobs for myself. I need to get a trigger pull gauge of some type.

I did a trigger job on a Beretta Neos but did not alter the springs like it called for. Many spring have close-wound or closed & ground ends, which are hard to do. I did not want to cut a spring 3 times & still have it too short ! ! !
I did only square, polish & radius some of the parts like sear, etc. It turned out pretty well.

I was also able to diagnose & remedy a trigger not resetting.

I'm about do a trigger (which is pretty decent anyway) on a rifle & the first tip is to cut springs. All the automotive experience pays off sometimes.

Thanks,
RDO