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Range Session: Round Two

I never could get the cast Sarco extractor to work properly. If I put the "proper" tension on it, it would fail to extract about 1/3 of the time. If I tightened it enough to ensure extraction, I would get hangups on the feed ramp. I decided to order a Brown extractor. I also upgraded my recoil spring to an 18.5 lb spring. The factory weight is supposed to be 16 pounds, but the 18.5 will enhance reliability.

While I was waiting for the parts to arrive, I undercut the trigger guard and checkered the frontstrap at 30 lines per inch. I used a carbide 3/8" mill to hog out most of the cut and then finished it out with my files. The checkering only took about three or four hours of work. I did it the same way I did before, cutting the vertical serrations to full depth before doing the horizontals. This time I just used my vise jaw as a guide to lay out the verticals. Bringing them to full depth didn't take as long as 20 lpi checkering, because you don't have to remove as much metal. Cutting the horizontal lines proved more challenging, mostly because it is more difficult to keep the file in the grooves when you're cutting a new line. Still, I like the way it turned out, and I think 30 lpi provides a good secure surface to hang onto without hurting your fingers (though 20 lpi doesn't especially bother me as much as it bothers some people.)

Finishing

I used needle files to soften the sharp edges on the slide and frame, notably the accessory rail notches, the bottom of the frontstrap around the magwell, and the ejection port. I used emery cloth to remove the remaining toolmarks, and also to put a shiny brushed finish on the barrel hood. Then it was off to the blasting cabinet.

I blasted the external parts such as slide, frame, hammer, beavertail, mainspring housing, mag catch, trigger, safety, etc. I did not blast the disconnector, sear, springs, pins, or barrel. For one thing, they are mostly hidden inside the gun, and I didn't much care if the moly resin might scrape off here or there. Also, blasting might change the critical tolerances of some surfaces (hammer & sear hooks), and it would have the unwelcome effect of imparting a gritty feel to everything. This time I blasted the checkering to help clean it up a little. Due to the reflections on the freshly checkered surface, it can be hard to see the exact shape of the checkering, but after blasting the whole area was easy to inspect.

I degreased the parts with a few blasts of brake cleaner and then followed up with a bath in water based degreaser and a rinse. Then everything went into the oven on a foil-covered cookie sheet to preheat. For this gun I wanted to try Norrell's semi-gloss black moly resin. Applying the finish was easy and occurred without incident. My $5.00 Harbor Freight airbrush is holding up well so far. I did notice that it is better to keep a continuous spray of paint going, and just move the parts around. Previously I'd tried to do quick squirts back and forth like I'm accustomed to doing with a spray paint can, but this would result in a few large drops coming out each time I opened the valve. As long as I was holding the button, the paint flowed smoothly.

After baking, I assembled it and took some photos.

For comparison purposes, I took a photo with it next to my first 1911 build.

Range Session: Round Three

Things went much more smoothly this time. I used some jacketed hollowpoints and some flat point 185 gr. reloads. None of my 1911's cared much for the flat points, they would all hang a round on the throat at least once per mag. The hollowpoints (Winchester's Personal Defense) fed without any problems. I didn't have any ball ammo to try with it but I don't doubt it will run pretty well with it. Sometime soon I hope to test it for accuracy, but given the surplus Sarco barrel I don't hold out much hope for extraordinary results.

Project Closeout

At this point I am officially "done" with this gun. There may be some parts replacement in its future but for now I am happy with the way it looks and works.

Total parts cost: $406

  • Sarco parts kit - $160 (group buy)
  • KT frame - $130 (group buy)
  • Baer Beavertail - $23
  • EGW fiber optic front sight - $24
  • Millett target rear sight - $22
  • MGW combat hammer - $22
  • Hammer strut - $4
  • Plunger spring ass'y - $3
  • Extractor - $10
  • Reduced power hammer spring - $3
  • 18 lb recoil spring - $5

    Also I had to buy one tool for this project, a front sight dovetail cutter, for $29. If anyone wants specific part numbers, email me and I'll provide them. Apart from the frame and parts kit, all the parts were purchased from Brownell's using my dealer discount.

    Comments? Email me: [email protected]

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