4th Generation Colt

Jim Taylor
[subject]
Wednesday, September 16, 2026, 21:27 (38 days ago)

I took the gun apart to see if I could clean it up a bit. The springs are heavy and things needed smoothed out a bit.

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The spring on the hand (pawl) needed tuning. It was dragging heavily when you rotated the cylinder at half cock.
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What it should look like.
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The other problem was, with the cylinder removed, if you cocked the hammer you could not get the hammer to fall unless you reached in and push the hand back into the recess. It was binding on the slot that was not milled out enough. It did not interfere as long as the cylinder was in the gun. But it wasn't right.

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I used jewlers files and a small grinding stone to remove the metal to keep the hand from binding. It works fine now.

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I installed a Heine trigger/bolt spring.
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The hammer spring is quite heavy. I will probably get a lighter spring in the future. An easy fix for now is a leather washer under the spring. It reduces the power a little and provides more flexing of the spring, reducing breakage ... not that they break that often.
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The trigger pull is still heavier than I like so I will need to work on that in the future.

On the lighter mainspring,

Jerry Kiln
[subject]
Thursday, September 17, 2026, 10:26 (38 days ago) @ Jim Taylor

ideally I'd think you'd grind and polish a lengthwise thickness taper, always working lengthwise to run with the grain, and ditto as for polishing sides, from an engineering standpoint of stress-risers.

However, on my Colts, I was lazy and only bought replacement springs, very much liking the Heinie for durability. As for mainsprings, I tried Wolff but really am mistrustful of a slot cut down the middle, especially if anything akilter and one side gets more stress than the other.

So, instead, I used Lee's Gunsmithing mainspring with its narrowed midsection, and never had a lick of trouble with one. I don't see their kit for the SAA currently listed on their site (maybe out of stock? out of production? I'm blind?), but Longhunter lists it in stock...
https://www.longhunt.com/storelh/index.php?route=product/product&path=88_89&pro...

I have polished springs like you described.

Jim Taylor
[subject]
Thursday, September 17, 2026, 12:34 (38 days ago) @ Jerry Kiln

Rather not until I have a couple on hand for "just in case" that sometimes happens. There are Several options I can try. Right now it is not a priority. Just something I am thinking about. Too light a hammerfall reduces consistency in velocity and accuracy, so it's something I want to experiment with when I can do it on the Range.

Yessir. You want a hard consistant lick

Jerry Kiln
[subject]
Thursday, September 17, 2026, 12:44 (38 days ago) @ Jim Taylor

on primers for consistant or even reliable ignition to get best accuracy. Sideways on your new Colt, but if hardcore well-heeled Ruger collector interest is as high as it was 10-15yrs ago, and especially if that Bisley Shootist's gun below is truly unfired/unturned/box/sleeve/papers crispy new, then among those perfect-or-nothing collectors, your Ruger might recoup a serious chunk of what you spent on that Colt. You probably know some of those RCA guys who could put out the word on availability.

I talked with a couple. We will see.

Jim Taylor
[subject]
Thursday, September 17, 2026, 14:47 (37 days ago) @ Jerry Kiln

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