Quote from: sqlbullet on February 25 2017 10:21:31 AM MST
I have a Glock 20 Gen 3 SF and a Para Ordnance P16-40 converted to 10mm. The Para is about identical tot he RIA Ultra FS HC. They even use the same mags.
My experience is I have a non-ammo related stoppage about every 4-5 magazines in the 1911. The stoppages are always a three-point jam and a light bump to the slide gets it going again. This goes up a great deal if the magazine spring is weak. I have polished the extractor and ensured it has no burrs or sharp edges. I have also polished the breech face. Before I got the gun the barrel was aggressively throated, to the point that after conversion to 10mm it is more prone to a brass bulge than my Glock. It is also finicky about COAL. The three point jams grow to 2-3 per magazine with most bullet profiles of the COAL is over 1.250".
As you mention, it is also a good bit heavier than the Glock. This becomes noticeable on all day carry. A plus for the 1911 is when carrying IWB, the thinner 1911 slide is more comfortable inside the waist band. But, it drags your pants down more. And, yes I use a good CCW belt, a Desantis Econobelt.
The Glock just runs. The only malfunctions I have seen in my Glock have been in the hands of new/inexperienced shooters that are limp-wristing their grip. I do not recall a single malfunction and I have fired close to 2,000 rounds through the Glock.
You will lose about 26 fps and about 26 lbs-ft of energy from the .4" shorter barrel. This is based on data from http://www.ballisticsbytheinch.com/10mm.html. I compared the 5" and 4" velocities for the 180 grain Buffalo Bore, 175 Grain Silvertips and the 200 grain XTP loads. Methodology to obtain velocity was to 5" velocity - ((5" velocity - 4" velocity)*.4). Energy was calculated by (velocity^2*weight in grains)/450432.
About shooting 40 S&W. Up to you. Lots of guys here do so. I personally do not because I handload and don't hardly every shoot factory ammo anyway. If I were going to I would consider a $99 lone wolf conversion barrel for my Glock VERY cheap insurance against the possible ill effects. A lone wolf barrel will be a true drop in conversion. Event "drop-in" 1911 barrels usually require some fitting.
If you expect to shoot a lot of 40S&W, I would definitely suggest the Glock. It will handle it better than the 1911, be cheaper to repair if something goes awry, and it is trivial to install a 40 S&W barrel to ensure you are completely safe.
think I'm going to go with the Gen4 G20. If I put an aftermarket barrel in it do you think it would still shoot 40s just fine? I don't plan to do it regularly but I like the ability.