Oooohkaay! It has been a long time coming.
THE 1911 TOP END
The top end of the 1911/1911A1 consists of the slide, barrel. barrel bushing, bushing plug, recoil spring, spring guide, barrel link, link pin, extractor, firing pin, firing pin spring, firing pin retainer, front sight and rear sight. Pretty basic. RIIIIIGHT!
The Slide
The slide seems pretty basic, right? Not so much. We have two common materials, carbon steel and stainless steel.
Then we have the rather exotic Damascus steel. Damascus steel is made by folding steel sheet over, heating and hammering until the two pieces become one, then repeat. If you fold the steel 10 times you get 1024 layers; fold 15 times and you get 32,768; and fold it 20 times and you have an amazing 1,048,576 layers. Yes that is over one million layers. Supposedly the finest Samurai swords were folded 20 times. If you ever get a chance to see a TV special on the making of Samurai swords watch it. It is fascinating!
However I digress. Damascus steel for slides, and frames, as far as I know, is for no other reason than its' appearance since it is quite striking and unique.
For a time Infinity offered an aluminum slide but it was proprietary since it was only available in one pistol and that had to be built by SVI/Infinity. You could not buy it and have your pistolsmith use it.
With the 2 slide materials we then look at slide length. Just among 3 manufacturers I found these lengths: 3", 3.5", 3.9", 4", 4.15", 4.25", 4.3", 4.5", 5", 5.1", and finally 6". Now we have 2 materials, carbon and stainless steels, and 11 lengths; 22 variations.
Next we will look at the STOCK slide serrations from a few manufacturers. Colt gives us vertical serrations on the 1911A1. They are V shaped but the V has a 90 degree front edge with what appears to be a 45 degree back edge. This gives a more solid grip when pulling back and is easier to slide your fingers forward to obtain the desired location. The Gold Cup has the same shape serrations but tilts the serration with the top closer to the muzzle. Springfield gives us square notch serrations, some vertical and some slanted forward. The serrations are wide with narrow outer edges. STI gives us square notches with inner and outer parts of the same width. Again, some vertical and some forward slant. Then we add in front serrations or not.
With only 3 manufacturers we have 12 variations on slide serrations. When we look at the artistic variations they look to be limited by only what one can do with metal.
22 variations of material and length times 12 variations of side serrations and we get 264 possible variations of only 3 things.
Sticking with the slide we move to the sights. John Moses, in spite of his design genius, equipped the 1911 with woefully inadequate sights. The front is barely there. The rear is much the same only sideways with a small notch in it.
Sights come in a plethora of heights, widths, shapes, colors and insert materials. Bullseye shooters prefer a front sight that is nice and tall, squared off, black and usually vertical. It is called a Patridge sight. Yes Patridge, not Partridge.
Actually I want you to go to Wickipedia and ask for "Iron Sight". It has an excellent article on open sights. It makes a few wrong assumptions about IPSC and IDPA shooters but I am sure you will know what they are.
Next I refer you to goshen-hexsite.com Click on the "Reviews and Feedback". Scroll down to the article by Michael Conti - Police Pistolcraft magazine. It too has some great information on iron sights starting with the Patridge. It ends with a glowing report on the Hexsite but it is the other material I found fascinating.
Front sights come in a plethora of heights, widths, inserts, colors and more. In the Dawson Precision catalog I found 13 variations of their "black serrated front sights". Then 30 variations of their "optic inserted" front sights. Oh, times 2, red or green. They then add 7 variations of height/width for their "tritium inserted front sights. So we find 13 + (30 x 2) + 7 = 80 variations of "Dawson Precision" front sights.
This brings us to 264 X 80 = 21,120 combinations.
We have only looked at slide material, lengths, serrations from 3 manufacturers, and front sights from one manufacturer. In the first part on the frame we had 552,960 combinations of 3 parts. Here we have 21,120 variations on 2 parts, slide and front sights. Which brings us to 116,785,150 combinations. Is it any wonder that people get confused about which combination they want. Over 116 Million combos, Yikes! Of course that ignores the trigger/hammer group and mag wells.
That is it for now.
To answer Mikeys question. There is no difference in twist rates for 38 Super and 9x23. Usually the only difference is how the chamber is cut, 38 Super or 9x23. I suppose some barrel makers do cut their 38 supers to .357" but I think the majority use the 0.355" bore for both the 38 Super and the 9x23 and the 9x19 for that matter.
Scheuman makes his 0.355" barrels in 1:16", 1:24" and 1:32" twists. The 1:24 is only available in his AET (Accuracy Enhanced Technology) barrels. The 1:16" and 1:32" twists are available in his "Classic" and heavy barrels. You really should go to the Scheuman web page and read what he has to say on barrel twists, very informative.
I do not know which shoots cast bullets better. I am pretty sure it is a matter of bullet hardness and then cartridge load. I use Berrys plated hard cast bullets in my 9x23 and with USPSA Major loads I consistently hit a 6" steel circle at 100yds off the bench. By consistent I mean 7-8 out of 10 shots. Apparently I drew some attention from the guys at the range. I could hear the closer guys saying "hit" and "oh darn she missed one". A Range Officer came down to see what I was shooting. With the Range Officer calling my hits I did hit a 24" square steel at 300yds. I hit it on the 4 shot with the RO calling how low my shots were. I think sighted in for 25yds I was about 8' low at 300yds. He just shook his head and said "damndest thing I have ever seen".
I was quite proud.