Equivalencias de puntuaciones de la diana del ajedrez (decenas)

guards, etc.

6. Turn down every "opportunity" to perform low quality work. Whatever work you accept, do it well. However small, every job you do becomes a part of your reputation.

7. Do only the highest quality custom work, and price it accordingly, as high quality work. In this way, you will develop a quality clientele.

8. Be selective, work only for those who can appreciate fine work. Remember that high quality custom gunsmithing goes beyond simple craftsmanship;

somewhere along the line, it becomes an art form.

The very best things have always been made by hand: the finest automobiles, the best shotguns, and the best and most accurate target pistols. When properly cared for, well crafted firearms will last and can be enjoyed by generations.

O D D I T I E S . . .

In the past, some independent parts manufacturers and Colt copy producers nave had quality control standards that allowed non-blueprint parts to be shipped.

Evidence of this is the fact that such parts do exist, and are found from time to time during gunsmithing work. While many oddities are found, these are the main ones:

About Frames and

Slides-Frames can be found with disconnector ports mis-machined or on an angle-replace these frames.

Some frames have been made with plunger tube holes and/or ejector stud holes mis-positioned or spaced incorrectly. This is a matter of degree; careful fitting can compensate for slight errors.

When you receive a new frame, check it against known correct parts [as gauges]

ie: ejector, plunger tube, trigger, etc. Check the rails and the magazine well.

Investment cast frames can be found with one rail slot noticeably lower than the other. With these frames, normal slides are usually twice as loose on one side-replace these frames.

Always check replacement slides for warp from heat treating. A small amount of warp is not unusual, and is easily dressed. Past a few thousandths, reject the slide.

Investment cast slides with one side higher or lower than the other should be rejected. But, if you are a real optimist, you might keep the slide in the hope of finding a mis-cast frame that happens to match.

Miscellaneous-If, after installation of a new slide stop [full diameter crosspin], a relinked match barrel begins to bind at the corner of the bottom lug as the barrel tries to link down, enlarge the bottom half of the link pin hole [the big hole] by about .002"

to .004". This will allow extra disconnect clearance without affecting lock-up.

Sometimes, links will bind against the bottom of the frame tunnel, which requires that the area just below the link be lowered and/or the link be edge dressed for clearance.

On test firing, primers may show firing pin strikes off center enough to affect accuracy after dressing the slide lugs and linking the barrel higher. In these cases, the stock firing pin hole is drilled and an off center, realigning firing pin bushing insert is installed.

Sometimes, accessory [usually adjustable] triggers with unusual rear bow angles and/or extra bow length cannot be trimmed enough to work correctly. In an effort to make such a trigger work, it's possible that someone may have incorrectly trimmed the back of the sear for adjustable trigger clearance. Watch for these and replace as necessary. If you decide to clearance cut the back of a sear, either use a Gold Cup sear for a model, or skip it and install a Gold Cup sear instead.

A slightly over cut [too deep] hammer full-cock engagement bottom, combined with a slightly short sear, can also render thumb safety inoperative.

are fairly common. Reject them.

Series 80 firing pin plates will retrofit, but earlier types do not fit 80's, since they do not have a plunger lever clearance notch.

Welding on some investment castings can produce surprises. Flow additives used by some manufacturers will produce slag pockets even with the best heliarc procedures. With such castings, don't even consider gas welding .

For replacement

parts-For best quality and a minimum of problems, I suggest you stay with factory Colt- or a high quality accessory parts manufacturer.

Quick factory parts recoil spring identification-[May not apply to springs of other manufacture.]

Number of turns 24 coils

24 coils 24 coils 28 coils 28 coils 28 coils 28 coils 28 coils 32 coils 32 coils

Barrel length 4 1/4" Commander 4 1/4" Commander 4 1/4" Commander 5" Gold Cup 5" Government 5" Government 5" Ace .22 5" .22 conversion 5" Government 5" Gold Cup

Caliber 9mm .38 Super .45 ACP .45 WC*

.9mm .38 Super .22 LR .22 LR .45 ACP .45 ACP**

* Gold Cup- use 28 coil factory spring with wadcutters.

** Gold Cup- use 32 coil factory spring with hardball loads.

Models that are not listed use other recoil systems.

Factory slide stop parts

identification-Imprint Caliber

#1 All .45 caliber models

#2 Ace .22 and .22 conversions*

#3 All 9mm & .38 Super models

#4 10mm Model

* The #50278 .22 conversion slide stop was also used on the Gold Cup National Match .38 Spl.

T O O L S a n d S P E C I A L T O O L S

-Courtesy Fred V. Fowler Co., Inc.

Figure S- Shows a Foredom MMG bench mounted, 1/10th HP drive motor, and No. 8A handpiece. Probably, this is the best overall tool of its' type, and for just about all gunsmithing needs- plus, you can't wear it out. Speeds on direct drive to 14,000 RPM, and on reduction drive up to 5000 RPM. With plenty of power, it's hard to bog this one down. A heavy cast iron base and swivel keeps the tool on the bench where it belongs.

Figure T- Shows, at bottom, the Foredom bench mounted, RM Series drive motor. This slightly lower cost unit is quite similar to the MMG, at top, but does not have the reduction drive feature.

-Courtesy Foredom Electric Company

Figure U- Shows two Foredom handpieces excellent, in my opinion, for bench gunsmithing use. The number 25, at top, has double sealed ball bearings, and takes tool collets from 1/16" up to 1/4". Weight is about 7 oz. This is a heavy duty production grade tool. And below, the smaller, and lighter, Foredom number 8A handpiece handles tool collets from 1/32" through 3/32", with 1/8" as standard. Diameter is 3/4", weight is about 4 ounces, great for close detail work.

-Courtesy Foredom Electric Co.

Figure V- Shows basic measuring and gunsmithing tools particularly helpful in .45 auto pistolsmithing work, including dial calipers, both inside and depth gauge micrometers, gauge stock, dies, taps, staking tools, punches, drifts, basic hammer and sear jigs, a barrel plug gauge, a thread aligning tapper and a dial indicator.

Figure W- Shows additional useful pistolsmithing items including a steel bench block, both steel and plastic bushing wrenches, bushing expanders, bushing turning mandrel, dovetail cutter, assorted stones, a lug cutter, sight block, and magazine tuning/adjusting tools. Shown below is a toolmaker's vise; very handy for holding and fitting small parts. I suggest buying better quality tools; they work better and last longer.