I don’t know if I can post a link to another forum here, but if you Google “high round count pistols 100,000 AR15.com”, you should find a link to a thread on the AR15.com forum.
the guy who started the thread is the owner of Battlefield Las Vegas, a high end rental only gun range in Vegas. He has a few other threads on other topics including optics and rifles.
he answers a LOT of questions and the threads are a great read with Excellent info throughout the thread:
From the first post:
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Posted: 5/25/2015 1:37:09 PM EDT
Hi folks,
I have been answering questions for the AK guys for about two weeks now regarding AK's with 100,000+ rounds and what type of issues we see. Well, we have pistols that have over 100,000 rounds and I can provide a little info.
The background for the high round count is that we are rental-only range one block off the Las Vegas Strip (called Battlefield Vegas) and after all the talk about AK's, I completely spaced on the reliability of the pistols we use on the line everyday of the year except for Christmas. We go through approximately 150,000-180,000 rounds combined of 9mm, .45, .50AE, .500S&W, .38 Special, .380 and 9mm Makarov each month. I don't count .22 because even though we go through 1,000's of rounds, it's not in the same class as our standard calibers.
I can tell you that even though I am not a "Glock guy", it is the most reliable handgun in our inventory and I would trust it with my life. We use Gen1-Gen4 17's on the line and they are the most hassle-free handgun we have. I used my original Gen1 17 when we first opened two and a half years ago and it finally broke about six months ago. When I say broke, Glock's pretty much are the only handgun that suffer a "catastrophic" break. The slide cracks right at the narrow portion at the ejection port. They will continue to fire most of the time but the rounds group at the top right corner of the target. The factory recoil springs are amazing because the just keep going. The Glock gets used probably 10X as much as our Beretta M92's so it's not a fair to say the Beretta is more reliable (see below). We don't use aftermarket slides on our Glocks so I couldn't give you any info those because Glock will replace our cracked slides under warranty. Also, I don't meant to give the impression that breake slides all the time but it would be fair to say that they get at least 100,000 rounds before cracking.
My personal favorite, the Sig P226 doesn't fair as well. We go through more recoil springs in our 226's than any other weapon system combined. We've yet to break a slide but they will not function with a broken recoil spring.
Our Desert Eagle .50AE's run pretty reliable but the part that fails the most is the piston. We always have a few spares in the shop.
Our Beretta M92's...the one that all the RSO's hate, also hold up very well. In the last two years with the same four Beretta's, we've only replaced one barrel and "locking piece" that sits under the barrel. The M92 is only included in one package that we offer or the customer has to request that pistol specifically. It doesn't get run nearly as hard as the 1911's, Glock's or Sig's.
I will get more info on our 1911's (we use Sig, Springfield and Armscor) and I know I see them tagged for repair more often than the other pistols. I will find out what is the most common issue.
V/R
Ron M Cheney”