Lucky me I have Starrett calipers and all three pistols on hand to measure, so you can be assured my numbers are fact
Sig 220
Width of Slide: 0.85" at top, 1.1" at frame widening
Butt Width: 0.80" frame
Colt 1911
Slide Width: 0.92"
Butt Width (and entire frame): .775"
Glock 21 SF
Slide Width: 1.125"
Butt Width: 1.30"
You should note that the butt measurements account for the frame width. This is an important consideration with regard to the P220 and 1911, as there exists the ability to change grips that are considerably slimmer than OEM grips.
By its very nature, the single stack mag is slimmer than a comperable staggered row mag, and allow for slimmer profile firearm designs to suit.
Of that, there is no debate.
We, or should I say 'I' covered the capacity issue in my last post. You should form a credible rebuttal or admit you're wrong and let it go.
Who mentioned 'stopping power'?
The 45 acp round is overrated according to whom? You? There are several agencies that use it and would likely disagree wth your opinion.
So now you are turning your debate of 'Glock vs. 1911' platforms to '45acp vs. .357 sig' cartridge?
Ballistics is another topic and has nothing to do with the engineering of the two pistol designs.
This is a fairly well known fact.
Admitedly the staggered row box magazine has made leaps and bounds over the years with regard to reliability, under adverse conditions the single stack design is simplier and easier to feed from.
There is far less mechanical leverage on each round as they cycle through the mag, and less tollerance in the magazine to hold dirt, sand and the like to impede round cycling and feeding.
I'm not sure of your point. If this is a testament to the quality of McCormick's and Wilson's mags, I would agree. There are certainly good and bad manufactured magazines.
The quality of magazines can make or break any firearms' reliability. The design of the 1911 magazine is sound, unfortunately some manufacturers use substandard material and quality control, and some users employ them well past their due -this is not the fault of the pistol or it's design.
Glock did well to include the magazines in their patent. They can control the supply and therefore the quality of the product.
I'm sure once Glock's patents run out we will see superior aftermarket mags manufactured along with the bad.